Image markup: Ability to set default pen colour

1. What is the general goal of the feature?
Increase speed of markup for enumerator by having a global/project default pen colour (Stretch goal would be a quick standard colour selector, transparent highlight option, ability to add line/rect/circ/arrow/text.)

Currently the default black pen is almost always not the preferred colour and changing it is a five step process for every image (select markup menu/select set colour/select hue/select saturation/select OK) that often takes longer than the markup

In comparison, Enketo has a quick colour picker with 13 options

2. What are some example use cases for this feature?
B&W drawing markups with black pen isn't immediately obvious vs a 'redline'

When annotating a photo, black is often lost in areas that aren't very light, vs a bright solid colour.

3. What can you contribute to making this feature a reality?
Testing and feedback
Potentially funding depending on cost and if I can get a budget approval for it