Just started using this program for gaming art! Love it so far but would love to know if there is some sort of measure/pixel-counter tool available? TY!
If you use the Rectangular Selection tool, the bottom of the screen will show you the height, width, diagonal length (=distance between your start and end point) and angle of the diagonal until you let go of the mouse button.
Note that the diagonal measures the length of the hypothetical line and not the actual pixels required to draw it, so in most cases the number of pixels along your measured line will be the horizontal or vertical dimension (whichever is larger), not the diagonal length.
It works similar for other click+drag tools such as the Line tool, but selections are non-destructive, so I recommend using them when you just need to measure.