Description

This is a follow-up issue from #78397. The PR adopted WPDS color tokens so the themed site-editor chrome inherits the user's admin color scheme automatically.

However, a few hardcoded colors were intentionally left out of scope to keep the PR focused. This issue tracks them:

• Convert remaining $gray-300 borders to an appropriate token consistently. Site Editor: Apply the user's admin color scheme #78397 converted only the instance in packages/edit-site/src/components/layout/style.scss (to --wpds-color-stroke-surface-neutral). There are a few more borders across @wordpress/components that should be updated together to keep borders consistent. See this thread: Site Editor: Apply the user's admin color scheme #78397 (comment)

• components: Components: Complete WPDS token migration for remaining borders #79003
• edit-site: Style: Update color to use CSS variable in edit-site #79002
• global-styles-ui: Style: Update color to use CSS variable in global-styles-ui #79053