On a HiDPI screen, the editor only draws in the upper-left quadrant, but hit-testing covers the entire canvas. Of course, the preview is also very far off the desired results, since it's likewise drawing to the upper-left quadrant and also using the complete editor canvas (3/4 blank) as a source image.
On a HiDPI screen, the editor only draws in the upper-left quadrant, but hit-testing covers the entire canvas. Of course, the preview is also very far off the desired results, since it's likewise drawing to the upper-left quadrant and also using the complete editor canvas (3/4 blank) as a source image.