Editing text styles
Grails does not edit text styles yet. The Typography section shows them, and nothing in it changes a value.
Design
Text styles come from Figma. The Figma plugin syncs them into the project. To change a style, change it in the Figma file and sync again. The section then shows the new value.
Code
Your repository’s text styles (its typography tokens) are listed on Typography’s Code side, and they cannot be edited from Grails yet. Other kinds of token are edited on the Code side of Tokens: see Editing a value.
What is next
Editing typography from Grails is on the roadmap. This page will change when it ships.