Adding background-color and border-width variables to HR element

[devhoussam]

Fixes #33793

[ffoodd]

Thanks for the PR :)

I don't see the point of this: currentColor makes inheriting color useful (so if one override this variable, $hr-color doesn't make sense) and resetting border is, well, a reset.

I don't see any use case for this, how would it be useful?

[devhoussam]

Thanks for the PR :)

I don't see the point of this: currentColor makes inheriting color useful (so if one override this variable, $hr-color doesn't make sense) and resetting border is, well, a reset.

I don't see any use case for this, how would it be useful?

I think it is important because it exists and is already used and it would be better to edit it by using variables only.

[ffoodd]

Why editing it at all? What's the use case?

[mdo]

Pushed to #35123.