Issue #2572961 by NickWilde: Drush automatic download of colorbox plugin on enable.
Issue #2711571 by rudiedirkx: Language in theme_colorbox_imagefield() must be an object
Issue #1429784 by s_leu, mgifford, digitaldonkey: Use data attribute instead of rel to be HTML5 valid
Issue #2223247 by drupalninja99, 75th Trombone: Add mobile detection to colorbox-load and colorbox-inline
Issue #1947796 by spacetaxi: Views: Replacement patterns and node tokens are not replaced in caption
Issue #2686805 by frjo: Image style dependency is missing on configuration export
Issue #2710851: PHP warning "the following theme is missing from the file system: colorbox" on install via drush.
Issue #2687005 by heykarthikwithu: Unused imports in code base
Removed obsolete Internet Explorer 8 text from README.
Issue #2683947 by Sam152, frjo: Move away from the libraries module for detecting the library in hook_requirements
Issue #2680261 by Neelanjana Das: Colorbox ESLint errors
Issue #2626466 by gausarts, Jon-Snow: Notice: Undefined index: theme_hook_original in twig_render_template()
Revert Add template name to hook_theme() since it is not needed.
Rename inc file to theme.inc. Add template name to hook_theme().
Correcting two settings types.
Issue #2666598 by Sam152: Fix failing test in HEAD
Issue #2645160 by neerajskydiver: Caption is not working with 'Title text' and 'Alt text' properties from the file entity contrib module
Issue #2649886 by frjo, snsblvd: Content image style for first image is not working
Issue #2648424 by emanuelrighetto, Sam152: FieldFormatter
Issue #2642514 by Sam152: Create a basic integration test to ensure the colorbox library is loaded
Issue #2646540 by Sam152: Change PageAttachmentInterface to ElementAttachmentInterface
Issue #2646530 by Sam152: Remove the ColorboxAttachment::alreadyAdded flag
Issue #2646512 by Sam152: Inject the request stack into ActivationCheck
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