Help/About: Updates to About page.

Update the headers, icons, and avatar style to match the designs. Fix the version strings on embedded images. Remove the tagline on main About page. Update "ctrl" to the correct capitalization, "Ctrl".

Follow-up to [56263].
Props richtabor, markoserb, audrasjb, nekojonez.
See #58067.



git-svn-id: https://develop.svn.wordpress.org/trunk@56292 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/css/about.css

@@ -29,8 +29,8 @@
 	--text-light: #fff;
 
 	/* Accent colors: used in header, on special classes. */
-	--accent-1: #3858e9; /* Link color, credit image overlay */
-	--accent-2: #ffb7a7; /* Accent background */
+	--accent-1: #3858e9; /* Link color */
+	--accent-2: #c7b9f2; /* Accent background */
 	--accent-3: #f0f0f1; /* hr background */
 
 	/* Navigation colors. */
@@ -764,14 +764,12 @@
 	height: 140px;
 	border-radius: 100%;
 	overflow: hidden;
-	background: var(--accent-1);
 }
 
 .about__section .wp-person .gravatar {
 	width: 140px;
 	height: 140px;
 	filter: grayscale(100%);
-	mix-blend-mode: screen;
 }
 
 .about__section .compact .wp-person-avatar,