GitHub Code Language Icons

Replaces GitHub's boring round code language icons with Material Design Icons.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         GitHub Code Language Icons
// @description  Replaces GitHub's boring round code language icons with Material Design Icons.
// @icon         https://github.githubassets.com/favicons/favicon-dark.svg
// @version      2.0
// @author       afkarxyz
// @namespace    https://github.com/afkarxyz/userscripts/
// @supportURL   https://github.com/afkarxyz/userscripts/issues
// @license      MIT
// @match        https://github.com/*
// @grant        GM_setValue
// @grant        GM_getValue
// ==/UserScript==

(function() {
  'use strict';

  const CONFIG = {
    case_01: true, // The average of all icons
    case_02: true, // Organization's Repositories (https://github.com/orgs/yt-dlp/repositories)
    case_03: true, // Languages
    case_04: true, // Other Languages
    case_05: true, // Filter by (https://github.com/search?q=spotify&type=code)
    case_06: true, // More languages... (https://github.com/search?q=spotify&type=repositories)
    case_07: true  // Search's Languages (https://github.com/search?q=spotify&type=repositories)
  };

  const BASE_URL = 'https://raw.githubusercontent.com/afkarxyz/userscripts/refs/heads/main/assets/material/';
  const ICON_BASE_URL = `${BASE_URL}icons/`;

  let languageMappings = {};

  async function fetchLanguageMappings() {
    const cacheKey = 'githubLanguageRemapCache';
    const currentTime = Date.now();
    const cachedData = JSON.parse(GM_getValue(cacheKey, '{}'));
    
    if (cachedData.timestamp && (currentTime - cachedData.timestamp < 7 * 24 * 60 * 60 * 1000)) {
      return cachedData.mappings;
    }
    
    try {
      const response = await fetch(`${BASE_URL}remap.json`);
      const data = await response.json();
      
      GM_setValue(cacheKey, JSON.stringify({
        mappings: data.iconRemap,
        timestamp: currentTime
      }));
      
      return data.iconRemap;
    } catch (error) {
      console.error('Failed to fetch language mappings:', error);
      return cachedData.mappings || {};
    }
  }

  function normalizeLanguageName(language) {
    const normalizedLanguage = language.toLowerCase();

    for (const [iconName, languageList] of Object.entries(languageMappings)) {
      if (languageList.includes(normalizedLanguage)) {
        return iconName;
      }
    }

    return normalizedLanguage;
  }

  async function fetchAvailableIcons() {
    const cacheKey = 'githubLanguageIconsCache';
    const currentTime = Date.now();
    const cachedData = JSON.parse(GM_getValue(cacheKey, '{}'));

    if (cachedData.timestamp && (currentTime - cachedData.timestamp < 7 * 24 * 60 * 60 * 1000)) {
      return cachedData.fileTypes;
    }

    try {
      const response = await fetch(`${BASE_URL}icons.json`);
      const data = await response.json();

      GM_setValue(cacheKey, JSON.stringify({
        fileTypes: data.fileTypes,
        timestamp: currentTime
      }));

      return data.fileTypes;
    } catch (error) {
      console.error('Failed to fetch icon list:', error);
      return cachedData.fileTypes || [];
    }
  }

  async function replaceLanguageIcons() {
    let availableIcons;
    try {
      availableIcons = await fetchAvailableIcons();
    } catch (error) {
      console.error('Error getting available icons:', error);
      return;
    }

    const processedElements = new Set();

    async function replaceOtherIcon(targetSvg) {
      if (!CONFIG.case_04) return;

      try {
        const response = await fetch(`${ICON_BASE_URL}other.svg`);
        const svgText = await response.text();

        const parser = new DOMParser();
        const svgDoc = parser.parseFromString(svgText, 'image/svg+xml');
        const newSvg = svgDoc.querySelector('svg');

        const attributes = targetSvg.attributes;
        for (let i = 0; i < attributes.length; i++) {
          const attr = attributes[i];
          if (attr.name !== 'class') {
            newSvg.setAttribute(attr.name, attr.value);
          }
        }

        newSvg.setAttribute('width', '16');
        newSvg.setAttribute('height', '16');
        newSvg.setAttribute('viewBox', '0 0 24 24');

        const innerGroup = newSvg.querySelector('g') || newSvg.querySelector('path');
        if (innerGroup) {
          innerGroup.setAttribute('transform', 'scale(0.67)');
        }

        const targetClasses = Array.from(targetSvg.classList);
        targetClasses.forEach(className => {
          newSvg.classList.add(className);
        });

        newSvg.style.width = '16px';
        newSvg.style.height = '16px';
        newSvg.style.minWidth = '16px';
        newSvg.style.minHeight = '16px';

        targetSvg.parentNode.replaceChild(newSvg, targetSvg);
      } catch (error) {
        console.error('Failed to replace Other icon:', error);
      }
    }

    function processElement(element) {
      if (processedElements.has(element)) return;
      processedElements.add(element);

      let langElement, language;

      // Case 1: The average of all icons
      if (CONFIG.case_01 && element.matches('.repo-language-color')) {
        const languageSpan = element.parentElement.querySelector('[itemprop="programmingLanguage"]');

        if (languageSpan && !languageSpan.dataset.iconProcessed) {
          language = normalizeLanguageName(languageSpan.textContent);

          if (availableIcons.includes(language)) {
            const iconImg = document.createElement('img');
            iconImg.src = `${ICON_BASE_URL}${language}.svg`;
            iconImg.alt = `${language} icon`;
            iconImg.width = 16;
            iconImg.height = 16;
            iconImg.style.marginRight = '2px';
            iconImg.style.verticalAlign = 'sub';

            element.parentElement.insertBefore(iconImg, element);
            element.remove();
            languageSpan.dataset.iconProcessed = 'true';
          }
        }
      }
      // Case 2: Organization's Repositories 
      else if (CONFIG.case_02 && element.matches('.Box-sc-g0xbh4-0.fCvgBf')) {
        const languageSpan = element.querySelector('.prc-Text-Text-0ima0');
        
        if (languageSpan && !languageSpan.dataset.iconProcessed) {
          const languageText = languageSpan.textContent.trim();
          language = normalizeLanguageName(languageText);
          
          element.innerHTML = '';
          
          const newLanguageSpan = document.createElement('span');
          newLanguageSpan.className = 'Box-sc-g0xbh4-0 fVplbS prc-Text-Text-0ima0';
          newLanguageSpan.textContent = languageText;
          
          if (availableIcons.includes(language)) {
            const iconImg = document.createElement('img');
            iconImg.src = `${ICON_BASE_URL}${language}.svg`;
            iconImg.alt = `${language} icon`;
            iconImg.width = 16;
            iconImg.height = 16;
            iconImg.style.verticalAlign = 'middle';
            
            element.appendChild(iconImg);
          }
          
          element.appendChild(newLanguageSpan);
          newLanguageSpan.dataset.iconProcessed = 'true';
        }
      }
      // Case 3: Languages
      else if (CONFIG.case_03 && element.matches('.d-inline')) {
        langElement = element.querySelector('.text-bold');

        if (!langElement || langElement.textContent.toLowerCase() === 'other' || element.dataset.iconChecked) return;

        language = normalizeLanguageName(langElement.textContent);
        element.dataset.iconChecked = 'true';

        const svg = element.querySelector('svg');

        if (!svg || !availableIcons.includes(language)) return;

        const img = document.createElement('img');
        img.src = `${ICON_BASE_URL}${language}.svg`;
        img.width = 16;
        img.height = 16;
        img.className = 'mr-2';
        img.style.verticalAlign = 'middle';

        svg.parentNode.replaceChild(img, svg);
      }
      // Case 4: Other Languages
      else if (CONFIG.case_04 && element.matches('.octicon-dot-fill')) {
        const parentElement = element.closest('.d-inline');
        if (parentElement) {
          const languageElement = parentElement.querySelector('.text-bold');
          if (languageElement && languageElement.textContent.toLowerCase() === 'other' && !element.dataset.iconProcessed) {
            element.dataset.iconProcessed = 'true';
            replaceOtherIcon(element);
          }
        }
      }
      // Case 5: Filter by
      else if (CONFIG.case_05 && element.matches('.Box-sc-g0xbh4-0.hjDqIa')) {
        const languageSpan = element.nextElementSibling;
        if (languageSpan && languageSpan.getAttribute('aria-label') && !languageSpan.dataset.iconProcessed) {
          language = normalizeLanguageName(languageSpan.getAttribute('aria-label').replace(' language', ''));

          if (availableIcons.includes(language)) {
            const iconImg = document.createElement('img');
            iconImg.src = `${ICON_BASE_URL}${language}.svg`;
            iconImg.alt = `${language} icon`;
            iconImg.width = 16;
            iconImg.height = 16;
            iconImg.style.marginRight = '4px';
            iconImg.style.verticalAlign = 'middle';

            element.style.display = 'none';
            languageSpan.parentNode.insertBefore(iconImg, languageSpan);
            languageSpan.dataset.iconProcessed = 'true';
          }
        }
      }
      // Case 6: More languages...
      else if (CONFIG.case_06 && element.matches('.ActionListItem-visual.ActionListItem-visual--leading')) {
        const languageLabel = element.closest('.ActionListContent')?.querySelector('.ActionListItem-label.text-normal');
        if (!languageLabel || !languageLabel.textContent || element.dataset.iconChecked) return;

        language = normalizeLanguageName(languageLabel.textContent);
        element.dataset.iconChecked = 'true';

        const colorDiv = element.querySelector('div');
        if (!colorDiv || !availableIcons.includes(language)) return;

        const img = document.createElement('img');
        img.src = `${ICON_BASE_URL}${language}.svg`;
        img.width = 16;
        img.height = 16;
        img.style.verticalAlign = 'middle';

        colorDiv.replaceWith(img);
      }
      // Case 7: Search's Languages
      else if (CONFIG.case_07 && element.matches('.prc-ActionList-LeadingVisual-dxXxW, .prc-ActionList-VisualWrap-rfjV-')) {
        if (element.dataset.iconChecked) return;
        element.dataset.iconChecked = 'true';
        
        const listItem = element.closest('.prc-ActionList-ActionListItem-uq6I7');
        if (!listItem) return;
        
        const languageDiv = listItem.querySelector('.Truncate__StyledTruncate-sc-23o1d2-0');
        if (!languageDiv || !languageDiv.title) return;
        
        language = normalizeLanguageName(languageDiv.title);
        
        const colorDiv = element.querySelector('.Box-sc-g0xbh4-0');
        if (!colorDiv || !availableIcons.includes(language)) return;
        
        const img = document.createElement('img');
        img.src = `${ICON_BASE_URL}${language}.svg`;
        img.alt = `${language} icon`;
        img.width = 16;
        img.height = 16;
        img.style.verticalAlign = 'middle';
        
        colorDiv.replaceWith(img);
      }
    }

    const observer = new MutationObserver((mutations) => {
      for (const mutation of mutations) {
        for (const node of mutation.addedNodes) {
          if (node.nodeType === Node.ELEMENT_NODE) {
            if (node.matches('.d-inline, .Box-sc-g0xbh4-0.fCvgBf, .repo-language-color, .Box-sc-g0xbh4-0.hjDqIa, .ActionListItem-visual.ActionListItem-visual--leading, .octicon-dot-fill, .prc-ActionList-LeadingVisual-dxXxW, .prc-ActionList-VisualWrap-rfjV-')) {
              processElement(node);
            } else {
              node.querySelectorAll('.d-inline, .Box-sc-g0xbh4-0.fCvgBf, .repo-language-color, .Box-sc-g0xbh4-0.hjDqIa, .ActionListItem-visual.ActionListItem-visual--leading, .octicon-dot-fill, .prc-ActionList-LeadingVisual-dxXxW, .prc-ActionList-VisualWrap-rfjV-').forEach(processElement);
            }
          }
        }
      }
    });

    observer.observe(document.body, {
      childList: true,
      subtree: true
    });

    document.querySelectorAll('.d-inline, .Box-sc-g0xbh4-0.fCvgBf, .repo-language-color, .Box-sc-g0xbh4-0.hjDqIa, .ActionListItem-visual.ActionListItem-visual--leading, .octicon-dot-fill, .prc-ActionList-LeadingVisual-dxXxW, .prc-ActionList-VisualWrap-rfjV-').forEach(processElement);
  }

  async function init() {
    languageMappings = await fetchLanguageMappings();
    replaceLanguageIcons();
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', init);
  } else {
    init();
  }
})();