New features

• Styling support for Stacked Tabs
• Custom icons for UI and callouts by default (toggleable)
• New dashed list styling by default (toggleable)
• Styling and alignment improvements for checkboxes
• Limited rollout of custom checkboxes (follows Alternative Checkboxes standard)
  • partially done
  • scheduling
• New CSSClass style-margin-top

Fixes

• FAB no longer has missing styling when the Bookmarks core plugin is disabled.
• Special font and alignment tweaks based on your OS.
• Titlebar exit button is now properly styled on Linux.

Codebase changes

• Additional license info added to comments for all borrowed code.