[Bug] wxGUI legend: selected map names not shown with Python 3.10

[neteler]

Describe the bug

The map name(s) is/are unreadable.

How it should be

To Reproduce
Steps to reproduce the behavior:

1. Load a map
2. Select it in the GUI
3. it becomes white'ish
4. unselect brings it back

System description (please complete the following information):

• Operating System: Fedora 35

GRASS version: 7.8.7dev                                                         
Code revision: f9f30f33f                                                        
Build date: 2021-12-14                                                          
Build platform: x86_64-pc-linux-gnu                                             
GDAL: 3.3.2                                                                     
PROJ: 8.2.0                                                                     
GEOS: 3.9.2                                                                     
SQLite: 3.36.0                                                                  
Python: 3.10.1                                                                  
wxPython: 4.0.7                                                                 
Platform: Linux-5.15.6-200.fc35.x86_64-x86_64-with-glibc2.34

Note: this is wxPython: 4.0.7-23 (i.e., with multiple recent patches to make the wxGUI start).

[neteler]

Does anyone know how to fix this? Or at least, where the related code snippet is?

Here what happens in G8:

--> when selecting, map name(s) disappear.

The lack of visible map names turns the usage of wxGUI to a more "difficult" experience, both in G7 and G8.

[veroandreo]

I experience the same glitch in F34 both with G78 and G80. Anyone else?