It's intended for touch screens, so it's nice and thick for easy acquisition by fingers.
It grows and shrinks as we add/remove text from the area.
I can drag it to pan around the text.
I can click outside the scrollbar but within the scrollbar area to get some coarse random access to the text.
This post is part of my Freewheeling Apps Devlog.
Comments gratefully appreciated. Please send them to me by any method of your choice and I'll include them here.