Please add a freeze indicator.

Ive been having issues where whenever i do something that would freeze the program for a bit, i end up waiting much longer than i should because i wouldn't realize that it actually unfroze. this issue also happens whenever i click something, think the program is frozen and doing its thing, but then realize that the click didnt even register.

im thinking a small animated sprite somewhere on the screen similar to this indicator on unreal engine 4. (look at linked video).

I know the feature was not intentional in unreal but i still find it very helpful whenever i want make sure my program is frozen or not.