Does D2 distinguish upper/lower case?

[gsgh3016]

I'm trying to use D2 like this:
x -> A -> a
but it looks like this:

Can I make this code to distinguish 'A' and 'a'?
If I can't, can you tell me why?

[alixander]

it's case insensitive @gsgh3016 .

You can do that by relabeling: https://play.d2lang.com/?script=qlDQtVNIBBFJmemOXCDCSsGRCxAAAP__&