Comment 14 for bug 1195724

I wrote a small program that just loads a PNG using our graphics code and terminates. This is an indicator that then prints if libpng is unhappy with a PNG. With that I could figure out which PNGs are troublesome and in current trunk (r7709), these are the problematic PNGs:

pics/genstats_points.png
pics/genstats_trees.png
pics/prefer_heroes.png
pics/prefer_rookies.png
pics/ware_list_bg.png
src/graphic/text/test/pics/red_box.png
tribes/wares/blackroot_flour/menu.png
tribes/wares/bread_atlanteans/menu.png
tribes/wares/bread_paddle/menu.png
tribes/wares/corn/menu.png
tribes/wares/cornmeal/menu.png
tribes/wares/diamond/menu.png
tribes/wares/fire_tongs/menu.png
tribes/wares/fishing_net/menu.png
tribes/wares/flour/menu.png
tribes/wares/hammer/menu.png
tribes/wares/hunting_bow/menu.png
tribes/wares/log/menu.png
tribes/wares/marble_column/menu.png
tribes/wares/meat/menu.png
tribes/wares/milking_tongs/menu.png
tribes/wares/pick/menu.png
tribes/wares/planks/menu.png
tribes/wares/quartz/menu.png
tribes/wares/saw/menu.png
tribes/wares/scythe/menu.png
tribes/wares/shield_advanced/menu.png
tribes/wares/shield_steel/menu.png
tribes/wares/shovel/menu.png
tribes/wares/smoked_fish/menu.png
tribes/wares/smoked_meat/menu.png
tribes/wares/spear/menu.png
tribes/wares/spear_advanced/menu.png
tribes/wares/trident_double/menu.png
tribes/wares/trident_heavy_double/menu.png
tribes/wares/trident_light/menu.png
tribes/wares/trident_long/menu.png
tribes/wares/trident_steel/menu.png