Hello @Dkime,
I have edit the Color Typography and Styling page and I can replicate the issue. The Global Colors throws an error when you edit it. At the moment, you cannot delete it. I would recommend that you wait for the next release because in the next release, you will be able to delete through the Dev Toolkit.
By the way, I noticed that as soon as you edit the color, a JS error displays in the console:
TypeError: Cannot read properties of null (reading 'includes')
at app.6f62d0f.js:2:304559
at Object.applyColors (app.6f62d0f.js:2:304780)
at V.<anonymous> (app.6f62d0f.js:2:190272)
at V.r [as parseColor] (lodash.min.js?ver=4.17.19:9:35079)
at V.colorToHsv (app.6f62d0f.js:2:190385)
at V.render (app.6f62d0f.js:2:192650)
at Qt (react-dom.min.js?ver=17.0.1:9:53278)
at Wt (react-dom.min.js?ver=17.0.1:9:53077)
at os (react-dom.min.js?ver=17.0.1:9:112194)
at Ur (react-dom.min.js?ver=17.0.1:9:77643)
Can you please test for a plugin conflict instead? A 3rd party plugin may also be causing this.
Best Regards.