Now that we don't have to worry about 8-bit displays, maybe we can add alpha

to the palette entries?

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403421

TODO

@@ -6,6 +6,7 @@
  * Implement desktop video mode change notification?
  * Implement icon support (with translucency?)
  * Remove <= 8-bit palettized display support
+ * See if we can add real alpha to the palette entries
  * Add diagonal line clipping to SDL_IntersectRectAndLine()
  * Add OpenGL 3.0 context support
  * Verify mouse grab support