Working greying out of not selected more and changed bolded line colour

needs cleaning, needs unselect logic and tests
Remove comments and select group on stack hover
move sibling index to correct scope, select correct stack

as 0 is top of y not bottom, how to get max y for sibling selection
point?
wooh! working 0 on y
Same colours on both point selection indicators
remove logs and colour
fix post rebase
lint