Space Exploration recommends a maximum stacksize of 200 and throws warnings/errors when an item exceeds it everytime a mod is updated. Currently anti matter research data has a stack size of 1000. Would you be so kind to decrease the Stack Size when SE is enabled.
Thank you.

I'm sorry, but right now I'm working on a 2.0 version of my mods so I don't really have time to update 1.0 — especially if it's something as minor as just a warning that SE prints once when something is updated.
If you know how, then feel free to make a patch yourself.

OK, did that. Took only 5 tries. I just wish, I would have seen earlier, that I can't open a PR or similar. Then I would have just reduced the stack size instead of implementing a fancy check.
For anyone finding this, just change the number 1000 to 200 in line 88 in the file compatibility-patches\Krastorio2\data.lua.