Merge pull request #3833 from Muzzu8421/fix/dark-theme-show-more-color

fix: resolve black font color on Show more/less in YouTube Dark theme

Author: ImprovedTube2

js&css/extension/www.youtube.com/appearance/comments/comments.css

@@ -39,16 +39,12 @@ html[it-comments='collapsed'][data-page-type=video] ytd-comments ytd-comments-he
 	font-family: inherit !important;
 	font-size: 1.6rem !important;
 	font-weight: 400 !important;
-
 	display: flex !important;
-
 	width: 100% !important;
 	height: 48px !important;
 	margin: 16px 0 0 !important;
-
 	color: var(--yt-spec-text-primary) !important;
 	border-bottom: 1px solid var(--yt-spec-10-percent-layer) !important;
-
 	justify-content: center !important;
 	align-items: center !important;
 }
@@ -72,6 +68,12 @@ html[it-comments='collapsed'][data-page-type=video] ytd-comments:not([it-activat
 		min-width: min(calc(100vw - 1000px), 1260px) !important; max-width: 1260px !important;
 	}
 }
+/* Fix: "Show more/less" font is black on YouTube Dark theme */
+html[dark][it-comments='collapsed'][data-page-type=video] ytd-comments ytd-comments-header-renderer::after,
+html[data-theme='dark'][it-comments='collapsed'][data-page-type=video] ytd-comments ytd-comments-header-renderer::after,
+html[data-theme='black'][it-comments='collapsed'][data-page-type=video] ytd-comments ytd-comments-header-renderer::after {
+	color: var(--yt-spec-text-primary, #eee) !important;
+}
 
 /* 2 COLS FEATURE */
 @media screen and (min-width: 1952px) {