Reactions Block: link color conflicts with dark themes

[jeherve]

Quick summary

The links added in the Reactions block do not use the link colors defined within a block-based theme, so that can cause some contrast issues:

Maybe they should stick to the theme's color scheme as much as possible, and then offer the core layout customization options if one wants to make any changes?

Steps to reproduce

1. Start with a site running a block-based theme
2. Customize your theme to use a dark color scheme
3. Activate the ActivityPub plugin
4. Check the look of the Reactions block on your site's frontend

What you expected to happen

I would expect the different elements of the block to match my theme's settings.

What actually happened

In the screenshot above, it shows that links are set to be yellow on my site, yet the reactions label is blue and the reaction item link is white.

Impact

Some (< 50%)

Available workarounds?

Yes, easy to implement

Logs or notes

No response