[dw-nonfree] Convert site skin & theme preview images to color-indexed PNGs

[fu]

[commit: http://hg.dwscoalition.org/dw-nonfree/rev/c0bf40614696]

http://bugs.dwscoalition.org/show_bug.cgi?id=4054

Site skins previews: non-free

Patch by ninetydegrees.

Files modified:

• htdocs/img/siteskins/previews/celerity-local.png
• htdocs/img/siteskins/previews/gradation-horizontal-local.png
• htdocs/img/siteskins/previews/gradation-vertical-local.png
• htdocs/img/siteskins/previews/tropo-purple.png
• htdocs/img/siteskins/previews/tropo-red.png

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diff -r bbf0616525d1 -r c0bf40614696 htdocs/img/siteskins/previews/celerity-local.png
Binary file htdocs/img/siteskins/previews/celerity-local.png has changed
diff -r bbf0616525d1 -r c0bf40614696 htdocs/img/siteskins/previews/gradation-horizontal-local.png
Binary file htdocs/img/siteskins/previews/gradation-horizontal-local.png has changed
diff -r bbf0616525d1 -r c0bf40614696 htdocs/img/siteskins/previews/gradation-vertical-local.png
Binary file htdocs/img/siteskins/previews/gradation-vertical-local.png has changed
diff -r bbf0616525d1 -r c0bf40614696 htdocs/img/siteskins/previews/tropo-purple.png
Binary file htdocs/img/siteskins/previews/tropo-purple.png has changed
diff -r bbf0616525d1 -r c0bf40614696 htdocs/img/siteskins/previews/tropo-red.png
Binary file htdocs/img/siteskins/previews/tropo-red.png has changed
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