140 files changed, 138 insertions, 369 deletions

diff --git a/share/frontend/impattern/patterns/1.png b/share/frontend/impattern/img/patterns/1.png
index 0ff9c9b..0ff9c9b 100644
--- a/share/frontend/impattern/patterns/1.png
+++ b/share/frontend/impattern/img/patterns/1.png
diff --git a/share/frontend/impattern/patterns/10.png b/share/frontend/impattern/img/patterns/10.png
index 8b7c149..8b7c149 100644
--- a/share/frontend/impattern/patterns/10.png
+++ b/share/frontend/impattern/img/patterns/10.png
diff --git a/share/frontend/impattern/patterns/11.png b/share/frontend/impattern/img/patterns/11.png
index d83822f..d83822f 100644
--- a/share/frontend/impattern/patterns/11.png
+++ b/share/frontend/impattern/img/patterns/11.png
diff --git a/share/frontend/impattern/patterns/12.png b/share/frontend/impattern/img/patterns/12.png
index 1a0fbae..1a0fbae 100644
--- a/share/frontend/impattern/patterns/12.png
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diff --git a/share/frontend/impattern/patterns/13.png b/share/frontend/impattern/img/patterns/13.png
index 162d259..162d259 100644
--- a/share/frontend/impattern/patterns/13.png
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diff --git a/share/frontend/impattern/patterns/14.png b/share/frontend/impattern/img/patterns/14.png
index 888f852..888f852 100644
--- a/share/frontend/impattern/patterns/14.png
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diff --git a/share/frontend/impattern/patterns/15.png b/share/frontend/impattern/img/patterns/15.png
index c118abd..c118abd 100644
--- a/share/frontend/impattern/patterns/15.png
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diff --git a/share/frontend/impattern/patterns/16.png b/share/frontend/impattern/img/patterns/16.png
index 99a8498..99a8498 100644
--- a/share/frontend/impattern/patterns/16.png
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diff --git a/share/frontend/impattern/patterns/17.png b/share/frontend/impattern/img/patterns/17.png
index 3b2dc1a..3b2dc1a 100644
--- a/share/frontend/impattern/patterns/17.png
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diff --git a/share/frontend/impattern/patterns/18.png b/share/frontend/impattern/img/patterns/18.png
index 6c88fcc..6c88fcc 100644
--- a/share/frontend/impattern/patterns/18.png
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diff --git a/share/frontend/impattern/patterns/19.png b/share/frontend/impattern/img/patterns/19.png
index 343d10c..343d10c 100644
--- a/share/frontend/impattern/patterns/19.png
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diff --git a/share/frontend/impattern/patterns/2.png b/share/frontend/impattern/img/patterns/2.png
index db8b278..db8b278 100644
--- a/share/frontend/impattern/patterns/2.png
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diff --git a/share/frontend/impattern/patterns/20.png b/share/frontend/impattern/img/patterns/20.png
index b151802..b151802 100644
--- a/share/frontend/impattern/patterns/20.png
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diff --git a/share/frontend/impattern/patterns/21.png b/share/frontend/impattern/img/patterns/21.png
index a4dd846..a4dd846 100644
--- a/share/frontend/impattern/patterns/21.png
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diff --git a/share/frontend/impattern/patterns/22.png b/share/frontend/impattern/img/patterns/22.png
index 549a7f3..549a7f3 100644
--- a/share/frontend/impattern/patterns/22.png
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diff --git a/share/frontend/impattern/patterns/23.png b/share/frontend/impattern/img/patterns/23.png
index 5a3e921..5a3e921 100644
--- a/share/frontend/impattern/patterns/23.png
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diff --git a/share/frontend/impattern/patterns/24.png b/share/frontend/impattern/img/patterns/24.png
index d1786f4..d1786f4 100644
--- a/share/frontend/impattern/patterns/24.png
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diff --git a/share/frontend/impattern/patterns/25.png b/share/frontend/impattern/img/patterns/25.png
index 9916934..9916934 100644
--- a/share/frontend/impattern/patterns/25.png
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diff --git a/share/frontend/impattern/patterns/26.png b/share/frontend/impattern/img/patterns/26.png
index b24b4ad..b24b4ad 100644
--- a/share/frontend/impattern/patterns/26.png
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diff --git a/share/frontend/impattern/patterns/27.png b/share/frontend/impattern/img/patterns/27.png
index b06d0ff..b06d0ff 100644
--- a/share/frontend/impattern/patterns/27.png
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diff --git a/share/frontend/impattern/patterns/28.png b/share/frontend/impattern/img/patterns/28.png
index e3cdf2c..e3cdf2c 100644
--- a/share/frontend/impattern/patterns/28.png
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diff --git a/share/frontend/impattern/patterns/29.png b/share/frontend/impattern/img/patterns/29.png
index 04adbdb..04adbdb 100644
--- a/share/frontend/impattern/patterns/29.png
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diff --git a/share/frontend/impattern/patterns/3.png b/share/frontend/impattern/img/patterns/3.png
index e5a8bfc..e5a8bfc 100644
--- a/share/frontend/impattern/patterns/3.png
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diff --git a/share/frontend/impattern/patterns/30.png b/share/frontend/impattern/img/patterns/30.png
index 963dec8..963dec8 100644
--- a/share/frontend/impattern/patterns/30.png
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diff --git a/share/frontend/impattern/patterns/31.png b/share/frontend/impattern/img/patterns/31.png
index ca882f1..ca882f1 100644
--- a/share/frontend/impattern/patterns/31.png
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diff --git a/share/frontend/impattern/patterns/32.png b/share/frontend/impattern/img/patterns/32.png
index 16613b9..16613b9 100644
--- a/share/frontend/impattern/patterns/32.png
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diff --git a/share/frontend/impattern/patterns/33.png b/share/frontend/impattern/img/patterns/33.png
index 0f9407e..0f9407e 100644
--- a/share/frontend/impattern/patterns/33.png
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diff --git a/share/frontend/impattern/patterns/34.png b/share/frontend/impattern/img/patterns/34.png
index f74cfde..f74cfde 100644
--- a/share/frontend/impattern/patterns/34.png
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diff --git a/share/frontend/impattern/patterns/35.png b/share/frontend/impattern/img/patterns/35.png
index 863e55e..863e55e 100644
--- a/share/frontend/impattern/patterns/35.png
+++ b/share/frontend/impattern/img/patterns/35.png
diff --git a/share/frontend/impattern/patterns/36.png b/share/frontend/impattern/img/patterns/36.png
index 90ae4fd..90ae4fd 100644
--- a/share/frontend/impattern/patterns/36.png
+++ b/share/frontend/impattern/img/patterns/36.png
diff --git a/share/frontend/impattern/patterns/37.png b/share/frontend/impattern/img/patterns/37.png
index b89436a..b89436a 100644
--- a/share/frontend/impattern/patterns/37.png
+++ b/share/frontend/impattern/img/patterns/37.png
diff --git a/share/frontend/impattern/patterns/38.png b/share/frontend/impattern/img/patterns/38.png
index 4ac8558..4ac8558 100644
--- a/share/frontend/impattern/patterns/38.png
+++ b/share/frontend/impattern/img/patterns/38.png
diff --git a/share/frontend/impattern/patterns/39.png b/share/frontend/impattern/img/patterns/39.png
index d05f50d..d05f50d 100644
--- a/share/frontend/impattern/patterns/39.png
+++ b/share/frontend/impattern/img/patterns/39.png
diff --git a/share/frontend/impattern/patterns/4.png b/share/frontend/impattern/img/patterns/4.png
index a89724c..a89724c 100644
--- a/share/frontend/impattern/patterns/4.png
+++ b/share/frontend/impattern/img/patterns/4.png
diff --git a/share/frontend/impattern/patterns/40.png b/share/frontend/impattern/img/patterns/40.png
index 58d9757..58d9757 100644
--- a/share/frontend/impattern/patterns/40.png
+++ b/share/frontend/impattern/img/patterns/40.png
diff --git a/share/frontend/impattern/patterns/41.png b/share/frontend/impattern/img/patterns/41.png
index 84c5723..84c5723 100644
--- a/share/frontend/impattern/patterns/41.png
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diff --git a/share/frontend/impattern/patterns/42.png b/share/frontend/impattern/img/patterns/42.png
index d633b3f..d633b3f 100644
--- a/share/frontend/impattern/patterns/42.png
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diff --git a/share/frontend/impattern/patterns/43.png b/share/frontend/impattern/img/patterns/43.png
index a515475..a515475 100644
--- a/share/frontend/impattern/patterns/43.png
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diff --git a/share/frontend/impattern/patterns/44.png b/share/frontend/impattern/img/patterns/44.png
index de7cb2b..de7cb2b 100644
--- a/share/frontend/impattern/patterns/44.png
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diff --git a/share/frontend/impattern/patterns/45.png b/share/frontend/impattern/img/patterns/45.png
index 794c466..794c466 100644
--- a/share/frontend/impattern/patterns/45.png
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diff --git a/share/frontend/impattern/patterns/46.png b/share/frontend/impattern/img/patterns/46.png
index 79e6720..79e6720 100644
--- a/share/frontend/impattern/patterns/46.png
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diff --git a/share/frontend/impattern/patterns/47.png b/share/frontend/impattern/img/patterns/47.png
index 553201d..553201d 100644
--- a/share/frontend/impattern/patterns/47.png
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diff --git a/share/frontend/impattern/patterns/48.png b/share/frontend/impattern/img/patterns/48.png
index 36e284e..36e284e 100644
--- a/share/frontend/impattern/patterns/48.png
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diff --git a/share/frontend/impattern/patterns/49.png b/share/frontend/impattern/img/patterns/49.png
index fd30432..fd30432 100644
--- a/share/frontend/impattern/patterns/49.png
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diff --git a/share/frontend/impattern/patterns/5.png b/share/frontend/impattern/img/patterns/5.png
index cebb2e1..cebb2e1 100644
--- a/share/frontend/impattern/patterns/5.png
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diff --git a/share/frontend/impattern/patterns/50.png b/share/frontend/impattern/img/patterns/50.png
index bc884e8..bc884e8 100644
--- a/share/frontend/impattern/patterns/50.png
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diff --git a/share/frontend/impattern/patterns/51.png b/share/frontend/impattern/img/patterns/51.png
index 6a2c0fa..6a2c0fa 100644
--- a/share/frontend/impattern/patterns/51.png
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diff --git a/share/frontend/impattern/patterns/52.png b/share/frontend/impattern/img/patterns/52.png
index 3af3ed9..3af3ed9 100644
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diff --git a/share/frontend/impattern/patterns/53.png b/share/frontend/impattern/img/patterns/53.png
index bf84248..bf84248 100644
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diff --git a/share/frontend/impattern/patterns/54.png b/share/frontend/impattern/img/patterns/54.png
index 8a2229f..8a2229f 100644
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diff --git a/share/frontend/impattern/patterns/55.png b/share/frontend/impattern/img/patterns/55.png
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diff --git a/share/frontend/impattern/patterns/56.png b/share/frontend/impattern/img/patterns/56.png
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--- a/share/frontend/impattern/patterns/56.png
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diff --git a/share/frontend/impattern/patterns/57.png b/share/frontend/impattern/img/patterns/57.png
index f6f5dd8..f6f5dd8 100644
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diff --git a/share/frontend/impattern/patterns/58.png b/share/frontend/impattern/img/patterns/58.png
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diff --git a/share/frontend/impattern/patterns/59.png b/share/frontend/impattern/img/patterns/59.png
index ea4be4a..ea4be4a 100644
--- a/share/frontend/impattern/patterns/59.png
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diff --git a/share/frontend/impattern/patterns/6.png b/share/frontend/impattern/img/patterns/6.png
index fe8bbdf..fe8bbdf 100644
--- a/share/frontend/impattern/patterns/6.png
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diff --git a/share/frontend/impattern/patterns/60.png b/share/frontend/impattern/img/patterns/60.png
index 0144486..0144486 100644
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diff --git a/share/frontend/impattern/patterns/61.png b/share/frontend/impattern/img/patterns/61.png
index 49795ba..49795ba 100644
--- a/share/frontend/impattern/patterns/61.png
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diff --git a/share/frontend/impattern/patterns/62.png b/share/frontend/impattern/img/patterns/62.png
index bdee3df..bdee3df 100644
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diff --git a/share/frontend/impattern/patterns/67.png b/share/frontend/impattern/img/patterns/67.png
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--- a/share/frontend/impattern/patterns/87.png
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+<td class='patterns' style='background-image:url(img/patterns/38.png)' id='dither_38'></td>
+<td class='patterns' style='background-image:url(img/patterns/39.png)' id='dither_39'></td>
+<td class='patterns' style='background-image:url(img/patterns/4.png)' id='dither_4'></td>
+<td class='patterns' style='background-image:url(img/patterns/40.png)' id='dither_40'></td>
+<td class='patterns' style='background-image:url(img/patterns/41.png)' id='dither_41'></td>
+<td class='patterns' style='background-image:url(img/patterns/42.png)' id='dither_42'></td>
+<td class='patterns' style='background-image:url(img/patterns/43.png)' id='dither_43'></td>
+<td class='patterns' style='background-image:url(img/patterns/44.png)' id='dither_44'></td>
+<td class='patterns' style='background-image:url(img/patterns/45.png)' id='dither_45'></td>
+<td class='patterns' style='background-image:url(img/patterns/46.png)' id='dither_46'></td>
+<td class='patterns' style='background-image:url(img/patterns/47.png)' id='dither_47'></td>
+<td class='patterns' style='background-image:url(img/patterns/48.png)' id='dither_48'></td>
+<td class='patterns' style='background-image:url(img/patterns/49.png)' id='dither_49'></td>
+<td class='patterns' style='background-image:url(img/patterns/5.png)' id='dither_5'></td>
+<td class='patterns' style='background-image:url(img/patterns/50.png)' id='dither_50'></td>
+<td class='patterns' style='background-image:url(img/patterns/51.png)' id='dither_51'></td>
+<td class='patterns' style='background-image:url(img/patterns/52.png)' id='dither_52'></td>
 </tr>
 <tr>
 
-<td class='patterns' style='background-image:url(patterns/53.png)' id='dither_53'></td>
-<td class='patterns' style='background-image:url(patterns/54.png)' id='dither_54'></td>
-<td class='patterns' style='background-image:url(patterns/55.png)' id='dither_55'></td>
-<td class='patterns' style='background-image:url(patterns/56.png)' id='dither_56'></td>
-<td class='patterns' style='background-image:url(patterns/57.png)' id='dither_57'></td>
-<td class='patterns' style='background-image:url(patterns/58.png)' id='dither_58'></td>
-<td class='patterns' style='background-image:url(patterns/59.png)' id='dither_59'></td>
-<td class='patterns' style='background-image:url(patterns/6.png)' id='dither_6'></td>
-<td class='patterns' style='background-image:url(patterns/60.png)' id='dither_60'></td>
+<td class='patterns' style='background-image:url(img/patterns/53.png)' id='dither_53'></td>
+<td class='patterns' style='background-image:url(img/patterns/54.png)' id='dither_54'></td>
+<td class='patterns' style='background-image:url(img/patterns/55.png)' id='dither_55'></td>
+<td class='patterns' style='background-image:url(img/patterns/56.png)' id='dither_56'></td>
+<td class='patterns' style='background-image:url(img/patterns/57.png)' id='dither_57'></td>
+<td class='patterns' style='background-image:url(img/patterns/58.png)' id='dither_58'></td>
+<td class='patterns' style='background-image:url(img/patterns/59.png)' id='dither_59'></td>
+<td class='patterns' style='background-image:url(img/patterns/6.png)' id='dither_6'></td>
+<td class='patterns' style='background-image:url(img/patterns/60.png)' id='dither_60'></td>
 
-<td class='patterns' style='background-image:url(patterns/61.png)' id='dither_61'></td>
-<td class='patterns' style='background-image:url(patterns/62.png)' id='dither_62'></td>
-<td class='patterns' style='background-image:url(patterns/63.png)' id='dither_63'></td>
-<td class='patterns' style='background-image:url(patterns/64.png)' id='dither_64'></td>
-<td class='patterns' style='background-image:url(patterns/65.png)' id='dither_65'></td>
-<td class='patterns' style='background-image:url(patterns/66.png)' id='dither_66'></td>
-<td class='patterns' style='background-image:url(patterns/67.png)' id='dither_67'></td>
-<td class='patterns' style='background-image:url(patterns/68.png)' id='dither_68'></td>
-<td class='patterns' style='background-image:url(patterns/69.png)' id='dither_69'></td>
-<td class='patterns' style='background-image:url(patterns/7.png)' id='dither_7'></td>
-<td class='patterns' style='background-image:url(patterns/70.png)' id='dither_70'></td>
-<td class='patterns' style='background-image:url(patterns/71.png)' id='dither_71'></td>
-<td class='patterns' style='background-image:url(patterns/72.png)' id='dither_72'></td>
-<td class='patterns' style='background-image:url(patterns/73.png)' id='dither_73'></td>
-<td class='patterns' style='background-image:url(patterns/74.png)' id='dither_74'></td>
+<td class='patterns' style='background-image:url(img/patterns/61.png)' id='dither_61'></td>
+<td class='patterns' style='background-image:url(img/patterns/62.png)' id='dither_62'></td>
+<td class='patterns' style='background-image:url(img/patterns/63.png)' id='dither_63'></td>
+<td class='patterns' style='background-image:url(img/patterns/64.png)' id='dither_64'></td>
+<td class='patterns' style='background-image:url(img/patterns/65.png)' id='dither_65'></td>
+<td class='patterns' style='background-image:url(img/patterns/66.png)' id='dither_66'></td>
+<td class='patterns' style='background-image:url(img/patterns/67.png)' id='dither_67'></td>
+<td class='patterns' style='background-image:url(img/patterns/68.png)' id='dither_68'></td>
+<td class='patterns' style='background-image:url(img/patterns/69.png)' id='dither_69'></td>
+<td class='patterns' style='background-image:url(img/patterns/7.png)' id='dither_7'></td>
+<td class='patterns' style='background-image:url(img/patterns/70.png)' id='dither_70'></td>
+<td class='patterns' style='background-image:url(img/patterns/71.png)' id='dither_71'></td>
+<td class='patterns' style='background-image:url(img/patterns/72.png)' id='dither_72'></td>
+<td class='patterns' style='background-image:url(img/patterns/73.png)' id='dither_73'></td>
+<td class='patterns' style='background-image:url(img/patterns/74.png)' id='dither_74'></td>
 </tr>
 <tr>
-<td class='patterns' style='background-image:url(patterns/75.png)' id='dither_75'></td>
-<td class='patterns' style='background-image:url(patterns/76.png)' id='dither_76'></td>
-<td class='patterns' style='background-image:url(patterns/77.png)' id='dither_77'></td>
-<td class='patterns' style='background-image:url(patterns/78.png)' id='dither_78'></td>
-<td class='patterns' style='background-image:url(patterns/79.png)' id='dither_79'></td>
-<td class='patterns' style='background-image:url(patterns/8.png)' id='dither_8'></td>
-<td class='patterns' style='background-image:url(patterns/80.png)' id='dither_80'></td>
-<td class='patterns' style='background-image:url(patterns/81.png)' id='dither_81'></td>
-<td class='patterns' style='background-image:url(patterns/82.png)' id='dither_82'></td>
-<td class='patterns' style='background-image:url(patterns/83.png)' id='dither_83'></td>
-<td class='patterns' style='background-image:url(patterns/84.png)' id='dither_84'></td>
-<td class='patterns' style='background-image:url(patterns/85.png)' id='dither_85'></td>
-<td class='patterns' style='background-image:url(patterns/86.png)' id='dither_86'></td>
-<td class='patterns' style='background-image:url(patterns/87.png)' id='dither_87'></td>
-<td class='patterns' style='background-image:url(patterns/88.png)' id='dither_88'></td>
-<td class='patterns' style='background-image:url(patterns/89.png)' id='dither_89'></td>
-<td class='patterns' style='background-image:url(patterns/9.png)' id='dither_9'></td>
-<td class='patterns' style='background-image:url(patterns/90.png)' id='dither_90'></td>
-<td class='patterns' style='background-image:url(patterns/91.png)' id='dither_91'></td>
-<td class='patterns' style='background-image:url(patterns/92.png)' id='dither_92'></td>
-<td class='patterns' style='background-image:url(patterns/93.png)' id='dither_93'></td>
-<td class='patterns' style='background-image:url(patterns/94.png)' id='dither_94'></td>
-<td class='patterns' style='background-image:url(patterns/95.png)' id='dither_95'></td>
-<td class='patterns' style='background-image:url(patterns/96.png)' id='dither_96'></td>
+<td class='patterns' style='background-image:url(img/patterns/75.png)' id='dither_75'></td>
+<td class='patterns' style='background-image:url(img/patterns/76.png)' id='dither_76'></td>
+<td class='patterns' style='background-image:url(img/patterns/77.png)' id='dither_77'></td>
+<td class='patterns' style='background-image:url(img/patterns/78.png)' id='dither_78'></td>
+<td class='patterns' style='background-image:url(img/patterns/79.png)' id='dither_79'></td>
+<td class='patterns' style='background-image:url(img/patterns/8.png)' id='dither_8'></td>
+<td class='patterns' style='background-image:url(img/patterns/80.png)' id='dither_80'></td>
+<td class='patterns' style='background-image:url(img/patterns/81.png)' id='dither_81'></td>
+<td class='patterns' style='background-image:url(img/patterns/82.png)' id='dither_82'></td>
+<td class='patterns' style='background-image:url(img/patterns/83.png)' id='dither_83'></td>
+<td class='patterns' style='background-image:url(img/patterns/84.png)' id='dither_84'></td>
+<td class='patterns' style='background-image:url(img/patterns/85.png)' id='dither_85'></td>
+<td class='patterns' style='background-image:url(img/patterns/86.png)' id='dither_86'></td>
+<td class='patterns' style='background-image:url(img/patterns/87.png)' id='dither_87'></td>
+<td class='patterns' style='background-image:url(img/patterns/88.png)' id='dither_88'></td>
+<td class='patterns' style='background-image:url(img/patterns/89.png)' id='dither_89'></td>
+<td class='patterns' style='background-image:url(img/patterns/9.png)' id='dither_9'></td>
+<td class='patterns' style='background-image:url(img/patterns/90.png)' id='dither_90'></td>
+<td class='patterns' style='background-image:url(img/patterns/91.png)' id='dither_91'></td>
+<td class='patterns' style='background-image:url(img/patterns/92.png)' id='dither_92'></td>
+<td class='patterns' style='background-image:url(img/patterns/93.png)' id='dither_93'></td>
+<td class='patterns' style='background-image:url(img/patterns/94.png)' id='dither_94'></td>
+<td class='patterns' style='background-image:url(img/patterns/95.png)' id='dither_95'></td>
+<td class='patterns' style='background-image:url(img/patterns/96.png)' id='dither_96'></td>
 
 </tr>
 <tr>
-<td class='patterns' style='background-image:url(patterns/a0.png)' id='dither_a0'></td>
-<td class='patterns' style='background-image:url(patterns/a1.png)' id='dither_a1'></td>
-<td class='patterns' style='background-image:url(patterns/a10.png)' id='dither_a10'></td>
-<td class='patterns' style='background-image:url(patterns/a11.png)' id='dither_a11'></td>
-<td class='patterns' style='background-image:url(patterns/a12.png)' id='dither_a12'></td>
-<td class='patterns' style='background-image:url(patterns/a13.png)' id='dither_a13'></td>
-<td class='patterns' style='background-image:url(patterns/a14.png)' id='dither_a14'></td>
-<td class='patterns' style='background-image:url(patterns/a15.png)' id='dither_a15'></td>
-<td class='patterns' style='background-image:url(patterns/a16.png)' id='dither_a16'></td>
-<td class='patterns' style='background-image:url(patterns/a17.png)' id='dither_a17'></td>
-<td class='patterns' style='background-image:url(patterns/a18.png)' id='dither_a18'></td>
-<td class='patterns' style='background-image:url(patterns/a19.png)' id='dither_a19'></td>
-<td class='patterns' style='background-image:url(patterns/a2.png)' id='dither_a2'></td>
-<td class='patterns' style='background-image:url(patterns/a20.png)' id='dither_a20'></td>
-<td class='patterns' style='background-image:url(patterns/a21.png)' id='dither_a21'></td>
-<td class='patterns' style='background-image:url(patterns/a22.png)' id='dither_a22'></td>
-<td class='patterns' style='background-image:url(patterns/a23.png)' id='dither_a23'></td>
-<td class='patterns' style='background-image:url(patterns/a24.png)' id='dither_a24'></td>
-<td class='patterns' style='background-image:url(patterns/a25.png)' id='dither_a25'></td>
-<td class='patterns' style='background-image:url(patterns/a26.png)' id='dither_a26'></td>
-<td class='patterns' style='background-image:url(patterns/a27.png)' id='dither_a27'></td>
-<td class='patterns' style='background-image:url(patterns/a28.png)' id='dither_a28'></td>
-<td class='patterns' style='background-image:url(patterns/a29.png)' id='dither_a29'></td>
-<td class='patterns' style='background-image:url(patterns/a3.png)' id='dither_a3'></td>
+<td class='patterns' style='background-image:url(img/patterns/a0.png)' id='dither_a0'></td>
+<td class='patterns' style='background-image:url(img/patterns/a1.png)' id='dither_a1'></td>
+<td class='patterns' style='background-image:url(img/patterns/a10.png)' id='dither_a10'></td>
+<td class='patterns' style='background-image:url(img/patterns/a11.png)' id='dither_a11'></td>
+<td class='patterns' style='background-image:url(img/patterns/a12.png)' id='dither_a12'></td>
+<td class='patterns' style='background-image:url(img/patterns/a13.png)' id='dither_a13'></td>
+<td class='patterns' style='background-image:url(img/patterns/a14.png)' id='dither_a14'></td>
+<td class='patterns' style='background-image:url(img/patterns/a15.png)' id='dither_a15'></td>
+<td class='patterns' style='background-image:url(img/patterns/a16.png)' id='dither_a16'></td>
+<td class='patterns' style='background-image:url(img/patterns/a17.png)' id='dither_a17'></td>
+<td class='patterns' style='background-image:url(img/patterns/a18.png)' id='dither_a18'></td>
+<td class='patterns' style='background-image:url(img/patterns/a19.png)' id='dither_a19'></td>
+<td class='patterns' style='background-image:url(img/patterns/a2.png)' id='dither_a2'></td>
+<td class='patterns' style='background-image:url(img/patterns/a20.png)' id='dither_a20'></td>
+<td class='patterns' style='background-image:url(img/patterns/a21.png)' id='dither_a21'></td>
+<td class='patterns' style='background-image:url(img/patterns/a22.png)' id='dither_a22'></td>
+<td class='patterns' style='background-image:url(img/patterns/a23.png)' id='dither_a23'></td>
+<td class='patterns' style='background-image:url(img/patterns/a24.png)' id='dither_a24'></td>
+<td class='patterns' style='background-image:url(img/patterns/a25.png)' id='dither_a25'></td>
+<td class='patterns' style='background-image:url(img/patterns/a26.png)' id='dither_a26'></td>
+<td class='patterns' style='background-image:url(img/patterns/a27.png)' id='dither_a27'></td>
+<td class='patterns' style='background-image:url(img/patterns/a28.png)' id='dither_a28'></td>
+<td class='patterns' style='background-image:url(img/patterns/a29.png)' id='dither_a29'></td>
+<td class='patterns' style='background-image:url(img/patterns/a3.png)' id='dither_a3'></td>
 
 </tr>
 <tr>
-<td class='patterns' style='background-image:url(patterns/a30.png)' id='dither_a30'></td>
-<td class='patterns' style='background-image:url(patterns/a31.png)' id='dither_a31'></td>
-<td class='patterns' style='background-image:url(patterns/a32.png)' id='dither_a32'></td>
-<td class='patterns' style='background-image:url(patterns/a33.png)' id='dither_a33'></td>
-<td class='patterns' style='background-image:url(patterns/a34.png)' id='dither_a34'></td>
-<td class='patterns' style='background-image:url(patterns/a35.png)' id='dither_a35'></td>
-<td class='patterns' style='background-image:url(patterns/a36.png)' id='dither_a36'></td>
-<td class='patterns' style='background-image:url(patterns/a37.png)' id='dither_a37'></td>
-<td class='patterns' style='background-image:url(patterns/a38.png)' id='dither_a38'></td>
-<td class='patterns' style='background-image:url(patterns/a39.png)' id='dither_a39'></td>
-<td class='patterns' style='background-image:url(patterns/a4.png)' id='dither_a4'></td>
-<td class='patterns' style='background-image:url(patterns/a40.png)' id='dither_a40'></td>
-<td class='patterns' style='background-image:url(patterns/a41.png)' id='dither_a41'></td>
-<td class='patterns' style='background-image:url(patterns/a5.png)' id='dither_a5'></td>
-<td class='patterns' style='background-image:url(patterns/a6.png)' id='dither_a6'></td>
-<td class='patterns' style='background-image:url(patterns/a7.png)' id='dither_a7'></td>
-<td class='patterns' style='background-image:url(patterns/a8.png)' id='dither_a8'></td>
-<td class='patterns' style='background-image:url(patterns/a9.png)' id='dither_a9'></td>
+<td class='patterns' style='background-image:url(img/patterns/a30.png)' id='dither_a30'></td>
+<td class='patterns' style='background-image:url(img/patterns/a31.png)' id='dither_a31'></td>
+<td class='patterns' style='background-image:url(img/patterns/a32.png)' id='dither_a32'></td>
+<td class='patterns' style='background-image:url(img/patterns/a33.png)' id='dither_a33'></td>
+<td class='patterns' style='background-image:url(img/patterns/a34.png)' id='dither_a34'></td>
+<td class='patterns' style='background-image:url(img/patterns/a35.png)' id='dither_a35'></td>
+<td class='patterns' style='background-image:url(img/patterns/a36.png)' id='dither_a36'></td>
+<td class='patterns' style='background-image:url(img/patterns/a37.png)' id='dither_a37'></td>
+<td class='patterns' style='background-image:url(img/patterns/a38.png)' id='dither_a38'></td>
+<td class='patterns' style='background-image:url(img/patterns/a39.png)' id='dither_a39'></td>
+<td class='patterns' style='background-image:url(img/patterns/a4.png)' id='dither_a4'></td>
+<td class='patterns' style='background-image:url(img/patterns/a40.png)' id='dither_a40'></td>
+<td class='patterns' style='background-image:url(img/patterns/a41.png)' id='dither_a41'></td>
+<td class='patterns' style='background-image:url(img/patterns/a5.png)' id='dither_a5'></td>
+<td class='patterns' style='background-image:url(img/patterns/a6.png)' id='dither_a6'></td>
+<td class='patterns' style='background-image:url(img/patterns/a7.png)' id='dither_a7'></td>
+<td class='patterns' style='background-image:url(img/patterns/a8.png)' id='dither_a8'></td>
+<td class='patterns' style='background-image:url(img/patterns/a9.png)' id='dither_a9'></td>
 <!--}}}-->
 </tr>
 </table>
diff --git a/share/frontend/impattern/sketch.html b/share/frontend/impattern/sketch.html
deleted file mode 100644
index c519820..0000000
--- a/share/frontend/impattern/sketch.html
+++ /dev/null
@@ -1,231 +0,0 @@
-<html>
-<head>
-<link href='css/normalize.css' rel='stylesheet' type='text/css'>
-<style type="text/css">
-#canvas_wrapper{
-//  position:absolute;
-  display: inline-block;
-white-space: pre-wrap;
-word-wrap: break-word;
--webkit-user-select: none;
--moz-user-select: none;
-user-select: none;
-//  pointer-events: none;
-}
-.canvas_cell{
-  border: 1px solid black;
-  display: inline-block;
-  width: 1em;
-  height: 1em;
-}
-.canvas_row{
-//  position: absolute;
-}
-
-.brush_tools{
-  padding:5px;
-  display: inline-block;
-  background: whitesmoke;
-  border: 1px solid gray;
-  cursor: pointer;
-}
-#brush{
-  background:gray;
-  color: white;
-  border: 1px solid black;
-}
-</style>
-
-</head>
-<body>
-
-<div id="canvas_wrapper">
-</div>
-<table>
-<tr>
-  <td>
-     <input size="2" type="text" id="rows" value="10">ROWS</input>
-  </td>
-</tr>
-<tr>
-  <td>
-    <input size="2" type="text" id="cols" value="10">COLS</input>
-  </td>
-</tr>
-</table>
-
-<div id="tools">
-  <div id="brush" class="brush_tools">Brush</div>
-  <div id="eraser" class="brush_tools">Eraser</div>
-</div>
-<input type="checkbox" id="show_grid" checked>Show grid?</input>
-<button id="drawing_finished">DONE</button>
-</body>
-<script src="js/jquery.min.js" type="text/javascript"></script>
-<script type="text/javascript">
-//dragging event 
-var isDragging = false;
-$("body").mousedown(function() {
-    $(window).mousemove(function() {
-        isDragging = true;
-        $(window).unbind("mousemove");
-    });
-}).mouseup(function() {
-    var wasDragging = isDragging;
-    isDragging = false;
-    $(window).unbind("mousemove");
-    if (!wasDragging) { //was clicking
-    }
-});
-
-var c;
-
-window.active_tool = "brush";
-var brush_tools; 
-
-
-
-function BrushTools(){
-  var brushtools = this;
-  this.brush = $("#brush");
-  this.eraser = $("#eraser");
-  this.brush_tools = $(".brush_tools");
-  this.active_css = {
-    "border" : "1px solid black",
-    "background" : "gray",
-    "color" : "white",
-  },
-  this.inactive_css = {
-    "border" : "1px solid gray",
-    "background" : "whitesmoke",
-    "color" : "black",
-  };
-  this.activate = function(elem){
-    $(elem).css(this.active_css);
-    window.active_tool = $(elem).attr("id");
-  };
-  this.deactivate = function(elem){
-    $(elem).css(this.inactive_css);
-  };
-//  this.cursors = {
-//    "brush" : "img/brush.png",
-//    "eraser" : "img/eraser.png",
-//  };
-  this.brush_tools.click(function(){
-    var that = this;
-    window.active_tool = $(this).attr("id");
-    brushtools.activate(that);
-    brushtools.brush_tools.each(function(){
-      if(this != that){
-        brushtools.deactivate(this);
-      }
-    }); 
-//   $("#canvas_wrapper").css(
-//     "cursor" , "url("+brushtools.cursors[window.active_tool]+")"
-//   ) 
-  });
-}
-
-
-
-
-function GridCanvas(){
-  var gridcanvas = this;
-  this.rows = 10;
-  this.cols = 10;
-  this.current_rows = [];
-  this.container = $("#canvas_wrapper");
-  this.paint = function(elem){
-    $(elem).attr("painted", "1");
-    $(elem).css("background", "black");
-  };
-  this.erase = function(elem){
-    $(elem).attr("painted", "0");
-    $(elem).css("background", "white");
-  };
-  this.initialize = function(cols, rows){
-    this.container.html("");
-    this.rows = rows;
-    this.cols = cols;
-    for (var i = 0; i< this.rows; i++){
-      var row = document.createElement("div");
-      $(row).attr("id", "row_"+i)
-      $(row).addClass("canvas_row")
-      for (var j = 0; j< this.cols; j++){
-        var cell = document.createElement("span");
-        $(cell).addClass("canvas_cell")
-        $(cell).attr("painted", "0")
-        $(cell).addClass("column_"+j)
-        $(cell).html("&nbsp;")
-        $(cell).click(function(){
-          if (window.active_tool == 'brush'){
-            gridcanvas.paint(this);
-          }else if(window.active_tool == 'eraser'){
-            gridcanvas.erase(this);
-          }
-        });
-        $(cell).mouseover(function(){
-          if (isDragging){
-            if (window.active_tool == 'brush'){
-              gridcanvas.paint(this);
-            }else if(window.active_tool == 'eraser'){
-              gridcanvas.erase(this);
-            }
-          }
-        });
-        $(row).append(cell)
-      }
-      this.container.append(row)
-    }
-  }
-  this.toggleGrid = function(){
-    if ($("#show_grid").prop("checked")){
-      $(".canvas_cell").css("border","1px solid black");
-    }else{
-      $(".canvas_cell").css("border","none");
-    }
-  }
-  this.serialize = function(){
-    var matrix = [];
-    for (var i = 0; i < this.rows; i++){
-      var row_storage = [];
-      $("#row_"+i+"> span").each(function(){
-         row_storage.push($(this).attr("painted"));
-      });
-      matrix.push(row_storage);
-    }
-    return JSON.stringify({ 
-      "matrix" : matrix, 
-      "width" : this.cols, 
-      "height" : this.rows, 
-    })
-  }
-}
-$("#cols").change(function(){
-  var cols = $(this).val()
-  c.initialize(cols, c.rows);
-});
-$("#rows").change(function(){
-  var rows = $(this).val()
-  c.initialize(c.cols, rows);
-});
-
-
-
-$(document).ready(function(){
-  
-  c = new GridCanvas();
-  brush_tools = new BrushTools();
-  c.initialize($("#cols").val(), $("#rows").val());
-  $("#show_grid").change(function(){
-    c.toggleGrid();
-  });
-  $("#drawing_finished").click(function(){
-     
-    console.log(c.serialize());
-  });
-  
-});
-
-</script>
-</html>