ContextTag differences

[felicio]

          note: ContextTag keeps on giving and has more to give. I keep bumping into slight differences, not always related to what I need to change.

More things to address being, for example,

• diff monospace font/look
• 1px diff in padding due to outline vs. border
• border radius
• gap of icon type
• diff in horizontal padding of icon type

However, I don't know how to address the above (more conditional rendering) in the ideal and maintainable way right now. If you do, please let me know, otherwise I'd create a follow-up issue.

Originally posted by @felicio in #478 (comment)