Crash on using a theme that used to work (linux)

[jmfergeau]

Actual behaviour

If a custom theme (based on the Modern theme with a couple of images and videos changed) has been set, usdx cannot start at all, giving this error in the logs:

An unhandled exception occurred at $000000000042B53A:
EInOutError: Invalid file handle
  $000000000042B53A

Expected behaviour

USDX should start with no problems with the defined theme

Steps to reproduce

• Go to the game settings
• Set the custom theme
• Note that the game still works perfectly with the theme. No errors, no crashes, nothing, it works as expected.
• Close USDX
• Start USDX again
• The error occurs
• To get rid of the error, edit config.ini and copypaste in the [Themes] section:

  Theme=Modern
  Skin=Blue
  Color=Red

Details

• The custom theme I mention is 99% based on the Modern theme of USDX, but from an old stable version of it. (at least a year old) Were there any critical changes in the themes management that can cause this crash?

• The custom theme is installed in the installation folder set with AUR (/usr/local/share/ultrastardx) for the simple reason that the themes folder inside ~/.ultrastardx is ignored (is it normal?)

• USDX version: the actual master branch of the git repo

• Operating System + version: Manjaro Linux 4.14.39-1

[basisbit]

Yes, themes changed quite a bit for the editor and some settings. Easiest would be to diff the txt files to see which parts are missing /invalid in your custom theme

[basisbit]

• [ ] TODO: display a helpful error message if theme loading or screen loading failed