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Do you mean vertical or horizontal?
The widget scales with the window size so the height can be adjusted. -
Yes. I wonder if there’s an algorithm for this.
I can definetly add some predefined rotating color palette. -
I know the whole “Set size” handling isn’t perfect but the size gets clamped no need to be perfectly on point.

The default size for creating a chapter is currently 1% of the total video duration this can be increased. I’ll experiment with your suggestions.
I already added a “Save heatmap with chapters” option it wasn’t trivial but I made it work ![]()
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