Klemen

I did not test yet, but  does not give me the impression it will be top/left in grid with 2px spacing as shown in my screenshot (repeated for convenience...

Marking draft as it seems there is a scrolling problem. Mark back to RFR once ready

I have pushed a per-page setting of scrolling (https://github.com/MCreator/MCreator/commit/d3f764ee1ee08894ecf6a85de386bc09c2c82e95) that should help with this PR. I recommend merging with master and adopting the system

Could you attach the workspace after opening in the last PR version and the crash logs?

Thank you, now let's wait for the input from @Defeatomizer

You have defined fallback pool name that is not defined in this structure, nor in some other structure:  @Defeatomizer please confirm I am correct. On that not, would it...

Once you merge new LAF, could you provide a screenshot of the jigsaw setup in MCreator UI for the screenshots in the PR description, so I can use that for...

Ready to be merged!

I have marked PR a a draft. Once you think you have fixed all the comments/feedback and tested all out, mark ready for review and we can do another round...

 Please leave for the original authors to acknowledge fix before marking it as resolved, as otherwise original reviewer may forget about one and if you also don't fix it...