Description of the Issue

In v8.1.2, changing settings in Dark Mode in Preferences will reset Style Configurator to "DarkModeDefault". (Should it be "Dark Mode Default?)
They should not interact in this way.

Steps to Reproduce the Issue

1. Open Preferences via Settings.
2. Click "Dark Mode".
3. Click something including:
   • "Enable dark mode"
   • Select any tone
   • Disable "Enable dark mode"
4. Change "Style Configurator" again.
5. Loop step 3 and 4.

Expected Behavior

User can select their favourite tone (app-theme) and styler (syntax-theme) separately.
These two type of configs are in different dialog, anyway.

Actual Behavior

When changing settings related to dark mode, the styler switches to "DarkModeDefault".
When disable "Enable dark mode", the styler switches to "Default (styler.xml)".