For those who are using "High Contrast" windows themes but still want a regular Visual Studio theme you might notice that the theme selector drop down is disabled. You can still change it by doing the following...
- Going to the registry key: HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\11.0_Config\Themes (or whichever version of VS you are using)
- Export the key of the theme you want (it's a bunch of random letters / numbers) to a .reg file.
- Then copy the "high contrast" key's name (again random letters / numbers)
- Delete the high contrast key and then rename the dark theme to the copied name
- Then import the exported theme from the reg file.
This permanently sets the theme to the one you've chosen.