Output window with "Arduino (Light)" actually having a dark theme

[InstantMuffin]

Describe the problem

To reproduce

Select the respective theme, start the IDE.

Expected behavior

I think given that this is a "light" theme, the background and text color of the output window is wrong.

Arduino IDE version

2.0rc-9.1 and nightly

Operating system

Linux

Operating system version

XUbuntu 22.04 LTS

Additional context

Also reported at:

• https://forum.arduino.cc/t/disimproved-editor-2-x/1049962/8

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the latest nightly build
• My report contains all necessary details