Created attachment 521286 [details] simple test file showing the bug (red square should be half transparent) Description of problem: On fedora 15, using SDL_gfx-2.0.17 The alpha channel is NOT alpha, it is opaque. Version-Release number of selected component (if applicable): SDL_gfx-2.0.17 (fedora 15) How reproducible: compile the attached test_sdlgfx.c (instruction inside the file it uses filledPolygonRGBA fucntion it produces an OPAQUE red square on top of blue triangle, not a TRANSPARENT red square. Additional info: This is fixed in SDL_gfx-2.0.22 (according to the changelog maybe in 2.0.18, but i tested only the latest 2.0.22) This make Lincity-ng game totatlly unusable with SDL (but gl is still playable if available)
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