I still don't know why you made a PNG exe only.
You know, in a forum, you usually read at least the last few pages of a topic before making a post. Please try to READ topics before you try posting in them. Your question was already answered:
For PNG stuff:
- It makes adding textures easier for people who make mods for this game
- It allows people to make transparent textures - as in have something like a transparent glass image that stays see-though in game
- It allows people to make larger textures without having to do the extra work of splitting up things into patches
- No more color restrictions for high quality images
- Converting ALL the textures just makes it easier to edit and manage them because now people don't have to use a set range of colors or worry about adding a palleted bitmap image that's in the wrong color format(palette). This allows people who make textures and graphics to focus more on the art itself rather than fight with the low color range.
^ This is the kind of poorer quality image that often occurred when you imported a high-color texture with the old image format. If you wanted to make it look better, you'd have to manually re-color the image yourself.
^ Full color quality is preserved in the game now, so now levels can have more varied looks and richer color quality overall.
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And even if you still don't understand - if you read the posts about the PNG version - it's made for modders only right now, so if you don't make levels or mods for this game, the PNG version shouldn't even matter to you(no offense).