MyTheme Studio is a free browser extension that restyles GitHub and LeetCode with dark and anime themes, renamed labels, emoji icons, cartoon mascots, sound effects and playful animations.
Now on Microsoft Edge Add-ons and Firefox Add-ons · Chrome coming soon
Install one or both. Each runs entirely in your browser and switches theme instantly across every open tab.
Reskins GitHub from top to bottom: colours, typography, icons and even the words on the page, with a mascot who cheers you on.
Turns every submission into a moment. Accepted, Wrong Answer and Compile Error each get a full screen themed animation, a sound and a reaction from your mascot.
Tap a theme. The preview at the top of the page changes its colours, mascot and labels, exactly like the extension does on GitHub.
Themes marked ★ come with MyTheme Studio Pro, a one time launch offer of $4.99 ₹149.
Each theme comes with a buddy who greets you, cheers when you star a repo or pass a test, and sulks a little when you don’t. Tap one to say hi.
Stars, followers, commits and contributions roll up from zero and land with a bounce.
Coins when you star, a fanfare when you level up and a “wah wah” when a test fails. Switch it off any time.
An animated LeetCode home page with today’s problem, your streak and a countdown to the next quest.
Rows and README sections slide in, a progress bar tracks the page, and a mascot takes you back to the top.
Pick a time and get nudged to solve the LeetCode Problem of the Day or push a GitHub commit, repeating until it’s done.
No accounts, no analytics, no servers. Everything stays in your browser’s extension storage.
Pass and you get a rising arpeggio, a victory screen and a mascot doing a happy dance. Miss and you get a buzzer, a glitch and a themed error: “409 CONFLICT” in Web Crawler, “GAME OVER” in Pixel.
Yes. Both extensions are free to install with 9 GitHub themes and 4 LeetCode themes. MyTheme Studio Pro unlocks everything else for a one time launch price of $4.99 ₹149.
Your license key arrives in the receipt email from Lemon Squeezy. Open the extension popup, go to the ⭐ Pro tab, paste the key and press Activate. One key works in both extensions.
Install MyTheme Studio for GitHub, click its icon in the toolbar and pick one of the 12 themes. Every open GitHub tab switches instantly.
On Microsoft Edge, install both extensions from Edge Add-ons with one click. On Firefox, install them from Firefox Add-ons. The Chrome Web Store version is in review; until then, Chrome, Brave and Opera users can download the zip, unzip it, open the extensions page, turn on Developer mode, choose “Load unpacked” and pick the unzipped folder.
Chrome, Edge, Brave, Arc, Opera and other Chromium browsers, plus Firefox 140 or newer, on desktop.
No. The extensions only restyle the pages you already see. They don’t send any data anywhere, don’t use analytics and never ask you to log in. See the privacy policy.
Yes. The popup has switches for Sounds and for “Remix GitHub”, which keeps your colours but restores GitHub’s original wording and layout.
Email shkshreyaskumar@gmail.com. I usually reply within two days.