I think I need a few more days since I am just starting to learn Qt. Is that okay?

Okay, so now my objective will be to somehow detect the first colon, and then display everything before that colon, right?
Or should I need to consider anything else?

I am sorry sir. Didn't quite get you...

I noticed that if I create a new session and don't name it anything at all. Then I run 'kdevelop --pick-session', that session doesn't show up in the list.
Also, suppose a session is named 'Hello'. It is displayed as 'Hello: ' in the session picker list, the kdevelop window title bar, and also under 'Session' (below 'Start New Session') like in the screenshot.
Should I try to change all of these too? Because that will eliminate the chopping off 3 letters part.

Can I get an instance when chopping off the last 3 letters won't work? Like, shouldn't the last 3 letters always be ": "
Or will it change if the name of the session's too big or something?

Changed a few errors. Now it should be working fine.