3rd attempt.
Are there programs with which you can create a Twitch overlay?
Yes…
An example would be good. Do you know how to create such?
Pages that don't do that you have to do yourself with Photoshop or other programs, just download gfx pack for which topic you want to overlay and then just get started
Gfx? Do you have a link?
There's no link, eg give minecraft gfx or whatever and then you will find many on yt
Are there programs? Answer: yes
If this is the third try, you could have learned to ask the question in such a way that you also get the answer you would like…
I know how to create something like that, yes. A possible program would be Photoshop…