Lossless optimization of png image files, using `pngslim` and other tools.
Program graphics (compiled or included with software):
- Slimmed 191 B (~281 B kpacked), average ~1% saving for 3 files.
Source artwork material (not directly included in a distribution):
- Slimmed 7 KiB (~5 KiB kpacked), average ~41% saving for 13 files.
git-svn-id: svn://kolibrios.org@10033 a494cfbc-eb01-0410-851d-a64ba20cac60
