This is a really minor point, but Winter Assault is for some reason missing the usual GOG-specific circular desktop icon and doesn't match my other games! Any chance of one in the next update?

There is major issue with Winter Assault actually. It is shpposed to be DLC and moreover already bundled in. They have two sga arcives split and get entire new onstallers for it. Still both versions in both packages should work. WA have full DOW and vise versa (sga file refer to GOG not sureif this is critical file). Icon issue probably come after that. They mess up what it WA.