Confusing to get out of TextureRegion editor

[aomimezura]

Godot version:

3.1

OS/device including version:

Ubuntu 14

Issue description:

I was creating a theme. I added the panel container class, added a stylebox, added a texture to the style box, then I couldn't figure out how to get out of the TextureReigon editor back into the Style editor. I eventually figured out you had to minimize the panelcontainer in the inspector, and reload the theme to get the style editor back.

[KoBeWi]

I just encountered it in 3.2.2. This is another issue similar to #28211, the editors for theme and texture region are conflicting here.

[flodihn]

I had the exact same issue twice in 2021, expect minimizing did not work, I had to find a scene which had a control node with this theme assign to click on it there to make the theme edit show up, which makes no sense.

Double clicking the theme from the file system tab should show the theme edit.