While working on a character design, I opted to replace the head I was designing and instead reused the original head I did for my first iteration of my character. The dilemma is that in the original drawing (because it was just 2D vector art, not an animated rig; what I'm designing is a rig), her head was tilted back (because she was leaning back), so I had to rotate it to align it properly, but that messes up, among other things, the grid (as you'll see in the second screenshot).
Here's what it looks like right now:
Is there a way to set the crooked rotation in the first screenshot as the
new default (where it will be aligned straight like it is by default, instead of tilted), or at least fix the grid to where it's at the correct/default starting angle (90 degrees) instead of being tilted?