Request: multiple, different-coloured highlighters on toolbar

I use the “highlighter” function often, e.g. to draw my attention to bits of my own notes that I need to come back to, etc. I use different colours for different purposes, which are easily selected from the toolbar. However, the last-selected colour is always remembered, so I have to go back to the toolbar every time I want to switch, e.g. from yellow (comments) to red (to do), etc.

I would love to be able to add custom buttons and/or keyboard shortcuts for different coloured highlighters, but (as far as I can see), this isn’t currently possible.

I hope this one is easy and might be considered for a future update. Any chance?