fix dark theme loop labels not visible

[jnnnnn]

• fix loop label text forced to black, ignoring styles
• fix styles that were being ignored

Here is an example of the problem: VSCode's markdown preview has a dark background (when a dark theme is active). The loop text is not readable for the dark theme because it is black on a dark background.

The fix in pictures: https://imgur.com/a/kRwll6B

[coveralls]

Pull Request Test Coverage Report for Build 752

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 54.256%

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Totals
Change from base Build 716:	0.0%
Covered Lines:	2051
Relevant Lines:	3755

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💛 - Coveralls

[knsv]

Thanks! Good to get that fixed