Fix scale highlighting with vertical zooming #6761
Merged
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Vertically zooming the piano roll caused highlighted semitones to drift from the actual note positions. This 2-line fix ensures the marked semitones are aligned with the grid lines and notes at all available vertical zoom levels.
Although this works on my low-resolution linux device, I am unable to test if display scaling (e.g. for 4k screens), OS differences (or other factors I have not considered) play well with this patch.
This might conflict with other pull requests that affect the piano roll like #6700