Issue #2031641 by aburrows, lauriii, nlisgo, Pol, redsquid, tuutti, LewisNyman, akalata, agviu, kallehauge, _nolocation, rpayanm, saki007ster, mdrummond, RavindraSingh, brahmjeet789: Change active class to is-active

Issue #2422363 by mortendk, joelpittet, davidhernandez: Rewrite the menu CSS components inline with our CSS standards

Issue #2408467 by idebr, DickJohnson, LewisNyman, monobasic: Rewrite pager component inline with our CSS standards

Issue #2417705 by idebr: Autocomplete suggestions visual regression after modal and jQuery UI update

Issue #2336141 by lauriii, LewisNyman, rteijeiro, balagan, emma.maria, stefika: Create reusable color classes

Issue #2372023 by andybroomfield, BarisW, aspilicious, LewisNyman, Vally79, tompagabor: Description of display settings takes too much space

Issue #2388301 by Sam152: Use CSS escape sequence in breadcrumb styles to prevent erroneous delimiter output

Issue #2226863 by cs_shadow, filijonka, joelpittet, pguillard: Update stale references to theme functions that have been converted to Twig

Issue #2227401 by emma.maria, tompagabor, Aleksandar_P | LewisNyman: Apply the seven style guide to the status report.

Issue #1623574 by droplet, cilefen, cesarmiquel, patrickfgoddard, sun, zaporylie, er.pushpinderrana, stevecowie, mbroere: Fixed Remove trailing space from form element labels and field labels (HTML nbsp).

Revert "Issue #1842140 by mdrummond, tonystar, gavin.hughes, killerpoke, lauriii, droweski, stevector, omg-its-maggie, jenlampton, Renee S: Remove title and wrapper div from theme_item_list."

This reverts commit 79395676.

Issue #1842140 by mdrummond, tonystar, gavin.hughes, killerpoke, lauriii, droweski, stevector, omg-its-maggie, jenlampton, Renee S: Remove title and wrapper div from theme_item_list.

Issue #1912608 by Cottser, ckrina, jamesquinton, lauriii, jwilson3, mgifford, scaragucc' | criz: Update pagination markup for new CSS standards and improved accessibility.

Issue #1777332 by hass, Cottser, mike.roberts, joelpittet, dawehner | jenlampton: Replace theme_menu_link() and menu-tree.html.twig with a single Twig template.

Issue #2274631 by joelpittet, mgifford, droplet, LewisNyman | hass: Fixed Form required marker "\204E" is broken in Google Chrome 35 / Internet Explorer 9.

Issue #2213583 by lauriii, sqndr, Crisz, herom, jamesquinton, esod, Rajendar Reddy, zserno, er.pushpinderrana, cs_shadow, amitgoyal | JayeshSolanki: Fixed Misaligned Icons in Drupal 8.x.

Issue #1898478 by joelpittet, Cottser, lokapujya, m1r1k, jstoller, er.pushpinderrana, duellj, organicwire, jessebeach, idflood, Jalandhar, Risse, derheap, galooph, mike.roberts, tlattimore, nadavoid, LinL, steveoliver, chakrapani, likin, killerpoke, EVIIILJ, vlad.dancer, podarok, m86 | c4rl: Menu.inc - Convert theme_ functions to Twig.

Issue #2031301 by andypost, Cottser, xjm, mark.labrecque, mariacha1, joelpittet, robynlgreen, danquah, trogels, Eric_A, thedavidmeister, jenlampton: Replace theme_more_link() and replace with #type 'more_link'.

Issue #1510544 by swentel, Bojhan, Gábor Hojtsy, merlinofchaos, Cottser, Wim Leers, plopesc, aspilicious, sannejanssen,  larowlan, tim.plunkett, nod_: Fixed Show previews in front-end theme, able to select different view modes.

Issue #2239861 by cs_shadow | pajooh: Fixed Incorrect file reference in /core/modules/system/css/system.theme.css.

Issue #2004252 by mortendk, babruix, dasjo, joelpittet, visabhishek, cwells, jenlampton, Dragan Eror, nikhiltri, minneapolisdan, Manuel Garcia, sarahjean, acouch | scor: Node.html.twig template.

Issue #2152217 by joelpittet, mgifford, vijaycs85, jjcarrion, sun: Remove theme_form_required_marker() from the theme system - use CSS instead.

Issue #2226923 by pakmanlh, mandar.harkare, mortendk, galooph: Views: remove wrapper around more link - add class to the link.

Issue #2201693 by plopesc, e0ipso, swentel: Field output supporting code should move out of field.module.

Issue #2192419 by sun, mgifford: Use a WCAG-compliant fieldset (fieldgroup) for #type radios/checkboxes.

Issue #1490402 by LewisNyman, nod_, mcjim, mdrummond, rteijeiro, jessebeach, Bojhan, ry5n: Redesign tabs and the content header.

Issue #1939064 by joelpittet, pwieck, farrington, mark.labrecque, Cottser, InternetDevels, mdrummond, drupalninja99, BarisW, jenlampton: Convert theme_links() to Twig.

Issue #2154683 by Gábor Hojtsy: Ul.links has no active styling for links (language switcher active link is indistinguishable).

Revert "Issue #2002336 by mgifford, falcon03, Liam Morland: Introduce a class to hide borders fieldsets elements."

This is not in-line with CSS standards, so temporarily rolling back for
further discussion.

This reverts commit 20faa056.

Issue #675446 by mgifford, RobLoach, amateescu, nod_, longwave, oxyc, rteijeiro, tomyouds, Jelle_S, mcrittenden, Sutharsan, hansyg, Angry Dan, clemens.tolboom, droplet | Dave Reid: Change notice: Use jQuery UI Autocomplete.