From: My Own Private Hell
The barren planets aren't the issue - Sets like the Continental and Desert are, because of the glow, Martian added. I was merely pointing out that they (no longer?) match with the game and causes issues even with the removed shadow file. I've been manually fixing planets for about an hour now since batch won't work.
Tried a macro record? I have PSP 9, great for awkward jobs like these, would say Irfanview as it is the best for any batch processing of any type of file but it does not play well with PNG files.
I'm still curious what has changed - If vanilla planets used to be bigger in earlier expansions, or if the game has started scaling the images down rather than letting the larger dimensions stay.
No idea, but scaling them down would only lead to a small increase in general performance, think that may why they are resized, smaller in the current release, a much better chance of increased performance.
I'd love to know about the backdrops though - Did the devs scale down on the number of backdrops allowed since the last version of GEM was released, or did Martian just drop the ball by putting in more backdrops than the engine would allow for?
(I'm asking because the Legends modding guide doesn't mention images in detail at all, but UW's makes it clear that only a small number of backdrops per planet type are detected - but you can use custom ones manually, which seems ... dumb to be honest)
Maybe they are there to give you a choice of what images to use? I would like the backdrops increased, I have Mojoworld and have some great planetary images.