Hi @Alexey-T
Could you validate this issue?

I cannot repeat it; pls send your user.json (or email: support _ uvviewsoft.com)
I am using a fresh install, maybe is a Lazarus bug.
still cannot repro; on Lin and Win10 too.
if CT is maximized - than it is possible to see this missing status bar effect… (on Win10)
only at the case that CT is maximized - before change theme action
after that state (missed status bar) - CT must be "resized/restored" - via system menu of CT window
will check it again, thanks.
confirmed on Win10. but I could not find the reason (where statusbar is made hidden).
I was editing the user.json when it is saved, CT I think reload this file because is default file, when it happens, CT again hides the status bar, is a kind of refresh.
The last version working well was the 1.112.1.0, tested with fosshub version history.

it's hard to find the bug, it's in Lazarus seems...
so I cannot find the reason. (Windows bug only). issue is very minor, so closing.
Most helpful comment
if CT is maximized - than it is possible to see this missing status bar effect… (on Win10)
only at the case that CT is maximized - before change theme action
after that state (missed status bar) - CT must be "resized/restored" - via system menu of CT window