Okay, I just experimented a little further (I didn't bother the first time, just switched to a different text editor), and it's slightly narrower than I thought:
1) Enable dark mode
2) Open a new note
3) Tab twice, then type text which will be invisible
It appears to be any line with two or more tabs of indentation. Not two or more relative to the previous line, but two or more period.
1) Enable dark mode
2) Open a new note
3) Tab twice, then type text which will be invisible
It appears to be any line with two or more tabs of indentation. Not two or more relative to the previous line, but two or more period.