How can users customize plugin styles / CSS?

Hey there,

I am trying to find out, what is the current best practice for users to customize specific CSS styles of a plugin, Joplin link graph as an example.

Say the graph panel DOM has an element with selector


, is there any way to modify this style within userchrome.css - this would be easiest, but didn't work for me.

Or is it necessary to create a custom userstyle setting, which is then injected into the plugin DOM (discovered an for the outline plugin here ).