New version available window visual issues

[taede]

Describe the bug When in dark mode, the window pictured above has room for improvement:

• The changelog is black text on white background
• The 'Download (installer)' button highlight colour is the same blue as in light mode, but with white text making it hard to read

Other bugs:

• Download installer actually downloads zipfile
• Download zipfile does nothing
• Skip version does not remember you wanted to skip (source for the last 3: Werewolf)

To Reproduce Install outdated ms2, activate Pro, set to dark mode. restart ms2. The window will pop up.

Expected behavior

• White text on grey background
• Change blue colour on highlighted button

Desktop (please complete the following information):

• Version 2023.3