Feature Request: Rotate ruler function

[YutaSuzu]

Thank you for great software.
I wish to have rotate ruler function for measure diagonal.
Would you consider it?

[alxnull]

Glad you like this app.

An option to rotate the ruler has already been requested a few times before. Unfortunately, this is not easy to realize with the current implementation of the app. As it would require bigger changes, I dont' think this feature will come anytime soon, but I definitely think it would be great to have it.