Youtube WATCHED overlay by amkitakk

/* ==UserStyle==
@name         Minimal Youtube + WATCHED overlay
@version      20230507.21.18
@namespace    userstyles.world/user/amkitakk
@description  Hides like numbers, comments, chat, recommendations, and various little things I personally don't use; also adds a "watched" overlay on videos that have already been watched.
@author       amkitakk
@license      No License
==/UserStyle== */

@-moz-document domain("youtube.com") {
/* darken thumbnail */
.resume-playback-background,
ytd-thumbnail-overlay-resume-playback-renderer {
	background: rgba(0, 0, 0, 0.8) !important;
	position: absolute;
	left: 0;
	top: 0;
	display: block !important;
	height: 100%;
	width: 100%;
	pointer-events: none;
	text-align: center;
}
/* add "WATCHED" text */
.resume-playback-background::before,
ytd-thumbnail-overlay-resume-playback-renderer::before {
	content: "WATCHED";
	/* feel free to change the value above to any other text */
	color: white;
	font-weight: bold;
	box-sizing: border-box;
	width: auto;
	height: 100%;
	display: flex;
	pointer-events: none;
	font-size: 200%;
	flex-direction: row;
	align-items: center;
	justify-content: center;
}
}