Incorrect editor tab color in the Settings dialog

[kittaakos]

Describe the problem

When the dark theme is enabled, the editor tab is still light in the Settings dialog.

To reproduce

• Open the IDE2,
• If you do not have a dark theme selected open the Settings and select a dark theme then close with OK,
• Open the Settings,
• The editor's tab is light.

Expected behavior

The editor's tab is dark when the theme is dark.

Arduino IDE version

7680194

Operating system

macOS

Operating system version

12.3.1

Additional context

No response

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