To save data about how exactly and where these arrows been rotated you can store coordinates of corners where these arrows been rotated for 90 degrees. Like this:
I like this shape of arrows better, it looks less chaotic than the current ones. And the slight rounding makes their design more modern and pleasing to the eye. +1 for this Feature Request.
bump. PLEASE can we fix the godforsaken arrows, obsidian? Canvas is so close to greatness, messy arrows that you have little control over are like the one think holding it back.
I will also love to use Canvas with rectangular arrows. I wanted to replicate this canvas from MURAL (pic above) but I just used Canvas for less than an hour and haven’t found the best way to replicate it.
I know there are plenty more options, but I would love to have everything in my vault, including the mind maps, and not just pasting images impossible to read (as the pic before). Hope Obsidian makes this awesome tool into its finest version. MURAL, as mentioned, could be a perfect reference: it allows even to assign tags to notes, react to them, and the variety it has for the arrows is really great, and so much more.