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Improves BlueSky's image quality by replacing image formats. When clicking an image, JPEGs are replaced with lossless PNGs. While browsing the site, JPEG thumbnails are replaced with full-sized AVIF images.
// ==UserScript==
// @name HD BlueSky
// @author Duskdyr
// @description Improves BlueSky's image quality by replacing image formats. When clicking an image, JPEGs are replaced with lossless PNGs. While browsing the site, JPEG thumbnails are replaced with full-sized AVIF images.
// @match *://*.bsky.app/*
// @grant none
// @namespace dskdr
// @license MIT
// @version 1.0
// ==/UserScript==
(function() {
'use strict';
function imgrplcr() {
document.querySelectorAll('img').forEach(img => {
let url = img.src;
if (url.includes('/feed_thumbnail') && url.includes('@jpeg')) {
url = url.replace('@jpeg', '@avif');
url = url.replace('/feed_thumbnail', '/feed_fullsize');
}
else if (url.includes('/feed_fullsize') && url.includes('@jpeg')) {
url = url.replace('@jpeg', '@png');
}
if (img.src !== url) {
img.src = url;
}
});
}
imgrplcr();
const observer = new MutationObserver(imgrplcr);
observer.observe(document.body, { childList: true, subtree: true });
})();