Issue #2541252 by HOG, finnsky, LewisNyman, nlisgo, saki007ster, alvar0hurtad0, maris.abols, pjbaert, bruvers, emma.maria, ti2m: Replace the .region-content ul/ol selector with text-formatted

Issue #2456805 by rachel_norfolk, rudraram, Manjit.Singh, emma.maria, saki007ster, ChandeepKhosa, idebr, Vidushi Mehta, dcor, mgifford, jp.stacey, mikebell_: Clean up the "messages" component in Bartik

Issue #2405057 by nlisgo, Manjit.Singh, ctraltdel, madhavvyas, avitslv, LewisNyman, emma.maria, joelpittet, dernetzjaeger, wmortada, karolus, cilefen, Noe_, davidhernandez, idebr: Replace arrow-asc and arrow-desc images with Libricons and implement using CSS

Issue #2486409 by emma.maria, _KurT_, rachel_norfolk, Manjit.Singh, andile2012, LewisNyman, hussainweb, BrightBold, ByronNorris, John Cook, lauriii: Clean up the "Search" component in Bartik

Issue #2005546 by mdrummond, joelpittet, Manuel Garcia, lauriii, lokapujya, epari.siva, hosef, rpayanm, emma.maria, HOG, zetagraph, wmortada, rteijeiro, Cottser, hussainweb, madhavvyas: Use branding block in place of page template branding variables (site name, slogan, site logo)

Issue #507488 by lauriii, mdrummond, Wim Leers, Manuel Garcia, pwolanin, davidhernandez, chx, jibran, andypost, dawehner, Xano, tuutti, Gábor Hojtsy, LewisNyman, maximiliam, eiriksm, borisson_, bill richardson, Fabianx, joelpittet, Jeff Burnz, xjm, webchick, Bojhan, EclipseGc, emma.maria, tim.plunkett: Convert page elements (local tasks, actions) into blocks

Issue #2398463 by amolnw2778, DickJohnson, thamas, emma.maria, LewisNyman, tadityar, lauriii, Manjit.Singh, trboslav, haasontwerp, richgilbert, pguillard, rachel_norfolk, Maninders, rteijeiro: Clean up the "content" component in Bartik

Issue #2542598 by xq1003, mori, pjbaert, emma.maria, lauriii: Clean up the "user" component in Bartik

Issue #2398453 by DickJohnson, idebr, LewisNyman, Manjit.Singh: Clean up the "admin" component in Bartik

Issue #2398445 by jp.stacey, LewisNyman, Manjit.Singh, pjbaert, emma.maria, ti2m: Clean up the "elements" component in Bartik

Issue #2398471 by DickJohnson, crazyrohila, rpayanm, lauriii, idebr, LewisNyman, saki007ster, piyuesh23, lanchez, davidhernandez: Clean up the "footer" component in Bartik

Issue #2398331 by cilefen, davidhernandez, Wim Leers, nod_: Add the ability to attach asset libraries directly from a template file

Issue #2399939 by DickJohnson, LewisNyman, mherchel, idebr, brahmjeet789: Refactor 'admin-panel' CSS component

Issue #2226189 by alvar0hurtad0, sivaji@knackforge.com, mherchel, emma.maria, LewisNyman, tmjoseantonio: Style the modal in Bartik

Issue #1164784 by emma.maria, kattekrab, tadityar, DickJohnson, vermario, luco, Jeff Burnz, davidhernandez, David_Rothstein, webchick, Bojhan, LewisNyman, alexpott: “Triptych” term is not widely understood; add "Featured top" and "Featured bottom"

Issue #2408581 by rachel_norfolk, zach.bimson, MarkoT91, Ieva Uzule, idebr, LewisNyman, sarav.din33: Clean up the "help" component in Bartik

Issue #2399709 by DickJohnson, idebr, LewisNyman: Remove media.css from Bartik, add it's current code directly to the components it references

Issue #2408653 by DickJohnson, LewisNyman: Remove lists.css from Bartik, add it's current code directly to the components it references

Issue #1340640 by tadityar, DickJohnson, emma.maria, Scionar:  Remove "Highlighted" region from Bartik

Issue #2375673 by DickJohnson, LewisNyman, lauriii, emma.maria, sqndr, Wim Leers, stephr: Split Bartik's CSS into SMACSS style components

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

git commit -m 'Issue #2377397 by Wim Leers, alexpott: Themes should use libraries, not individual stylesheets'

Revert "Issue #1813186 by nod_: Integrate scripts/stylesheets from info/layout files with libraries."

This reverts commit 9a8caf44.

Issue #1996238 by sun, nod_, damiankloip, Wim Leers, longwave, alexpott, Xano, mdrummond, Mark Carver, Jeff Burnz, highrockmedia, joelpittet, et al: Replace hook_library_info() by *.libraries.yml file.