Two finger background rotation
Allow users to rotate the background graph paper, lines , etc... using two fingers or a compass to select the angle of the background; then a "snap back" button to re correct for output. This would allow users to write at an angle, holding the device in one hand and the stylus in the other without having the awkward angle to maintain level text.
doesn't work on android app on my phone or chromebook. There is not rotate or crop option either
Marcos Cosimi Cannata commented
Being able to rotate the canvas with a two-finger gesture so I don't have to rotate the device