Extract color styles for color config setup, add button class to .menu-button
Account for new color config form options.
Add body foreground/backgound color choosers.
Add color brightening helper and more color controls.
Make thanksroy not break tests.
Switch color inputs to plain text.
Fix rules for configurable color fallbacks.
Break theme config into sections.
Merge branch 'color-config'
Use new recent_items helper.