Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2548991 by Wim Leers, Mile23: Remove Bartik's erroneous use of drupal_process_attached(), add tests

Issue #2142653 by corbacho, sqndr, LewisNyman, floretan, BarisW, G-raph, JamesLefrère, lokapujya, LoMo, Outi: Change default logo filetype to .svg and add an SVG version of Druplicon

Issue #2378095 by Wim Leers, Devin Carlson: Convert all remaining attached individual CSS/JS assets to attached asset libraries

Issue #2125621 by davidhernandez, mgifford, jessebeach, mparker17, anandps: Fixed Contrast between title/slogan and header is too low.

Revert "Issue #2125621 by anandps, mgifford, davidhernandez, jessebeach, mparker17: Fixed drupala11y.org finds two new color contrast issues."

Needs more discussion/review, given strong visual impact.

This reverts commit cdf25d79.

Issue #2248405 by davidhernandez, mgifford: Fixed Set Proper Contrast on the Color module's default colour scheme.

Issue #2125621 by anandps, mgifford, davidhernandez, jessebeach, mparker17: Fixed drupala11y.org finds two new color contrast issues.

Issue #924322 by tim.plunkett, Devin Carlson, dicix, mike stewart | Jeff Burnz: Color_scheme_form_submit() assumes color.inc provides keys that should be optional.

Issue #1712250 by alexpott, n3or, cam8001, vijaycs85, Albert Volkman, jibran, heyrocker, chx: Convert theme settings to configuration system.

Nate Lampton authored Oct 30, 2011 and catch committed Nov 01, 2011

Issue #22336 by quicksketch, scor, boombatower, and rfay. Move all core Drupal files under a core subdirectory.

- Patch #1164828 by tim.plunkett: color labels are not intuitive when searching for the keyword “background”.

- Patch #1164792 by tim.plunkett: when attempting to change blue to another color, users often change the first item on the list.

- Patch #908966 by Jeff Burnz: Bartik's default link color has inadequate contrast to background (WCAG 2.0 violation).

#683026 by jensimmons, JohnAlbin, Jeff Burnz, Jacine, stephthegeek, bleen18, smerrill, et al: New core theme: Bartik, a flexible, re-colorable theme with many regions that shows off what Drupal can do. Truly a team effort. :)