UI: Overlay settings show no icon

[maxwxyz]

Is there an existing issue for this?

• I have searched the existing issues

Problem description

It seems that Dock window overlay > Toggle left, right, top, bottom ... show no icon but instead an X, maybe for a missing file?

Full version info

OS: Windows 11 build 22631
Word size of FreeCAD: 64-bit
Version: 0.22.0dev.37213 (Git)
Build type: Release
Branch: main
Hash: 20e7deb86a8c6c2cd2378f09f8313760933f3a5c
Python 3.11.9, Qt 5.15.13, Coin 4.0.2, Vtk 9.2.6, OCC 7.7.2
Locale: German/Germany (de_DE)
Installed mods: 
  * CfdOF 1.25.12
  * Curves 0.6.36
  * dodo 1.0.1
  * fasteners 0.5.20
  * freecad.gears 1.2.0
  * OpenTheme 2024.5.3
  * OpticsWorkbench 1.0.17
  * sheetmetal 0.4.13

Subproject(s) affected?

Core

Anything else?

No response

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