Incompatible Software dialog style and sizing is broken
Splitting this out of #1898 (closed), the Incompatible Software dialog is currently pretty messed up. Look:
There's no way that's the intended style. The dialog is very small so I can only see three rows at a time (the fourth one is cut off), the Continue button uses blue text for some reason, and the left side of the Cancel button is completely cut off.
If I try resizing in the hopes of seeing more packages at once, it creates extra empty space instead of expanding the list box: