This is the most ridiculously petty thing to ask about but I"m genuinely curious about the following behaviour:
If I'm in shape mode and draw a shape, then Ctrl-Z to undo it, then press o, it will toggle to line mode.
If I'm in line mode and draw a line, then Ctrl-Z to undo it, then press o, nothing happens. I have to press o again to toggle to shape mode.
I'm just curious why this is the case. I spend a lot of time annotating pictures with rectangles and lines in paintdotnet and am often in the wrong mode and inadvertently draw a line when I want a rectangle (or vice versa). So my behaviour is to Ctrl-Z and hit o to toggle. However I have to be mindful of which mode I'm transitioning from/to in order to remember the number of o's to press.
I guess it also begs the followup question: is there a explicit and distinct hotkey for the line mode or one for shape mode?