Changing color of highlighter in Reader

Apologies if I have missed something really obvious...

I'm interested in yellow highlighting in the Reader (without going into Annotator). Everything that I've tried in Settings just changes the color of the Annotator tools, while everything that I do with Reader's highlighter is blue.

My hope is to be able to export annotated pdfs and print some on a color laser, so having the highlighting be yellow would be helpful. Can I only do that with Paintbrush in Annotator?