YouTube Dark Mode Desktop UI Mockup

Prompt

{   "type": "desktop UI mockup",   "application": "YouTube homepage",   "theme": "{argument name=\"theme\" default=\"dark mode\"}",   "browser_window": {     "url_bar": "{argument name=\"browser URL\" default=\"youtube.com\"}",     "tabs": 1,     "elements": ["back/forward buttons", "refresh", "extensions", "profile avatar"]   },   "layout": {     "sidebar": {       "position": "left",       "sections": [         { "title": "Main", "count": 3, "items": ["Home", "Shorts", "Subscriptions"] },         { "title": "You", "count": 6, "items": ["Your channel", "History", "Playlists", "Your videos", "Watch later", "Liked videos"] },         { "title": "Subscriptions", "count": 8, "items": ["Linus Tech Tips", "MrBeast", "Kurzgesagt - In a...", "ColdFusion", "3Blue1Brown", "Khan Academy", "Veritasium", "Show more"] },         { "title": "Explore", "count": 7, "items": ["Trending", "Music", "Films", "Live", "Gaming", "News", "Sport"] },         { "title": "More from YouTube", "count": 3, "items": ["YouTube Premium", "YouTube Music", "YouTube Kids"] }       ]     },     "top_filter_bar": {       "count": 11,       "labels": ["All", "Gaming", "Music", "Live", "Podcasts", "Mixes", "Science", "Lo-fi", "Thrillers", "Recently uploaded", "Watched"]     },     "video_grid": {       "layout": "4 rows by 3 columns",       "count": 12,       "videos": [         { "title": "Why Build Your Own GPU is Almost Impossible", "channel": "Linus Tech Tips", "thumbnail": "GPU chip with red arrow" },         { "title": "Survive 100 Days In Circle, Win $500,000", "channel": "MrBeast", "thumbnail": "MrBeast smiling with contestants in background" },         { "title": "What If We Nuke an Asteroid?", "channel": "Kurzgesagt - In a Nutshell", "thumbnail": "Missile approaching an asteroid in space" },         { "title": "How Dubai Became a $10 Billion City", "channel": "ColdFusion", "thumbnail": "Man next to Dubai skyline with text '$0 TO $10B'" },         { "title": "The Beautiful Math of Euler's Identity", "channel": "3Blue1Brown", "thumbnail": "Math equation and spiral graph on black background" },         { "title": "The World in 2040 - Population, Climate & More", "channel": "Veritasium", "thumbnail": "Lush green forest with text 'The World in 2040'" },         { "title": "I've Been Using Linux For 12 Years, This Is What Finally...", "channel": "DistroTube", "thumbnail": "Laptop and smartp...