[css-2026] Added features related to CSS UI 4 resolved on on Jan 15 #13332

Related resolutions:
* #13332 (comment)
* #12781 (comment)

Author: SebastianZ

css-2026/Overview.bs

@@ -983,6 +983,8 @@ Safe to Release pre-CR Exceptions</h2>
 
 		<li>The [=pseudo-classes=] '':scope'', '':defined'', '':focus-within'', '':dir()'', '':any-link'', '':open'', '':popover-open'', '':modal'', '':fullscreen'', '':placeholder-shown'', '':default'', '':valid'', '':invalid'', '':required'', '':optional'', and selector lists for the '':nth-child()'' and '':nth-last-child()'' [=pseudo-classes=], defined in [[!SELECTORS-4]]
 
+		<li>The 'accent-color' property and ''outline-color/auto'' value for the 'outline-color' property, defined in [[CSS-UI-4]]
+
 		<li>Everything in
 			<a href="https://www.w3.org/TR/css-animations-1/">CSS Animations Level 1</a>
 			and