[Feature request] Add theme color tools in guideline documentation

[Mister-Hope]

Clear and concise description of the problem

A color generate helper would be helpful for users.

Suggested solution

Similar like https://theme-plume.vuejs.press/tools/theme-colors/

adding it to https://ecosystem.vuejs.press/themes/guidelines.html#borders

Alternative

No response

Additional context

No response

[github-actions]

This issue is marked as stale because it has not had recent activity. Issues marked with stale will be closed if they have no activity within 7 days.

[github-actions]

This issue is marked as stale because it has not had recent activity. Issues marked with stale will be closed if they have no activity within 7 days.

[github-actions]

This issue is marked as stale because it has not had recent activity. Issues marked with stale will be closed if they have no activity within 7 days.