Highlighter color option for "drawing" image type

[Taylor_Lewis]

Would really like to see highlighter color option for use in the “drawing” data type. We mark up images a lot and can’t really use the solid colors that are currently offered in the simple UX. They obscure the details of the image behind it too much.

[Grant_Stead]

@TDhers here’s another request for drawing/markup enhancements.