message: docs(theming): change previousUrl of advanced
diff: initialTab: 'preview'
  inlineHtmlPreviews: true
  previousText: 'Color Generator'
  -previousUrl: '/docs/layout/color-generator'
  +previousUrl: '/docs/theming/color-generator'
  nextText: 'Publishing an app'
  nextUrl: '/docs/publishing/app-store'
  ---
  