Possible bug with changing editor theme

Godot Version

4.4.1.stable

Question

I go to Text Editor → Theme. I change member variable color. Option Color Theme automatically changes to Custom from Default. After restarting Godot theme is still Custom but a lot of colors have been changed to be like in Godot 2 theme (most notable is yellow keyword color).

Is it a bug or I am doing something wrong? If its a bug where is a best place to report it?

I have this bug as well, on 4.4.1 stable, on both my Arch and on Win10.

I try to change to Custom with the drop-down, and the default colors are retained. I edit some colors, they persist for my session, and then are lost when I next open the editor.