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An incredibly crappy implementation of universal dark mode
// ==UserScript==
// @name Universal Dark Mode
// @namespace https://github.com/colorBanded
// @version 1.0
// @description An incredibly crappy implementation of universal dark mode
// @author Sam Padilla
// @match *://*/*
// @grant none
// @run-at document-start
// @license MIT
// ==/UserScript==
(function() {
'use strict';
// Configuration
const config = {
// preserve
preserveColors: [
'red', 'green', 'blue', 'yellow', 'orange', 'purple', 'pink',
'#ff0000', '#00ff00', '#0000ff', '#ffff00', '#ffa500', '#800080', '#ffc0cb'
],
// exclude from dark mode
excludeSelectors: [
'img', 'video', 'canvas', 'svg', 'iframe',
'.preserve-colors', '[data-preserve-colors]'
],
// Background color
backgroundColor: '#000000',
// Default text color
textColor: '#ffffff',
// Border color for elements
borderColor: '#333333'
};
// Utility functions
function isColorPreserved(color) {
if (!color || color === 'inherit' || color === 'transparent') return false;
// Convert rgb/rgba to hex for comparison
const rgbMatch = color.match(/rgb\((\d+),\s*(\d+),\s*(\d+)\)/);
if (rgbMatch) {
const hex = '#' + [rgbMatch[1], rgbMatch[2], rgbMatch[3]]
.map(x => parseInt(x).toString(16).padStart(2, '0')).join('');
color = hex;
}
return config.preserveColors.some(preservedColor =>
color.toLowerCase().includes(preservedColor.toLowerCase())
);
}
function shouldExcludeElement(element) {
return config.excludeSelectors.some(selector => {
try {
return element.matches && element.matches(selector);
} catch (e) {
return false;
}
});
}
function getComputedStyleProperty(element, property) {
try {
return window.getComputedStyle(element).getPropertyValue(property);
} catch (e) {
return '';
}
}
// Main dark mode application function
function applyDarkMode(element = document.documentElement) {
// Apply to the element itself
if (element.nodeType === Node.ELEMENT_NODE && !shouldExcludeElement(element)) {
const computedStyle = window.getComputedStyle(element);
// Handle background
const bgColor = computedStyle.backgroundColor;
if (bgColor && bgColor !== 'rgba(0, 0, 0, 0)' && bgColor !== 'transparent') {
if (!isColorPreserved(bgColor)) {
element.style.backgroundColor = config.backgroundColor;
}
}
// Handle text color
const textColor = computedStyle.color;
if (textColor && !isColorPreserved(textColor)) {
element.style.color = config.textColor;
}
// borders restaurant and cafe
['border-color', 'border-top-color', 'border-right-color',
'border-bottom-color', 'border-left-color'].forEach(prop => {
const borderColor = computedStyle.getPropertyValue(prop);
if (borderColor && borderColor !== 'rgba(0, 0, 0, 0)' &&
borderColor !== 'transparent' && !isColorPreserved(borderColor)) {
element.style.setProperty(prop, config.borderColor);
}
});
}
// Recursively apply to children
// "how to kill a child (process)"
if (element.children) {
Array.from(element.children).forEach(child => {
applyDarkMode(child);
});
}
}
// not mysql injection (CSS Injection)
function injectGlobalCSS() {
const style = document.createElement('style');
style.id = 'dark-mode-userscript';
style.textContent = `
/* Global dark mode styles */
html, body {
background-color: ${config.backgroundColor} !important;
color: ${config.textColor} !important;
}
/* Common elements */
div, span, p, h1, h2, h3, h4, h5, h6, li, td, th,
article, section, header, footer, nav, aside {
background-color: ${config.backgroundColor} !important;
color: ${config.textColor} !important;
border-color: ${config.borderColor} !important;
}
/* Form elements */
input, textarea, select, button {
background-color: #222222 !important;
color: ${config.textColor} !important;
border-color: ${config.borderColor} !important;
}
/* Links */
a {
color: #66b3ff !important;
}
a:visited {
color: #cc99ff !important;
}
/* Preserve specific colors */
${config.preserveColors.map(color => `
[style*="color: ${color}"],
[style*="color:${color}"],
[style*="background-color: ${color}"],
[style*="background-color:${color}"] {
color: ${color} !important;
}
`).join('')}
/* Exclude preserved elements */
${config.excludeSelectors.join(', ')} {
filter: none !important;
}
`;
// Insert at the beginning of head to allow overrides
if (document.head) {
document.head.insertBefore(style, document.head.firstChild);
} else {
document.documentElement.appendChild(style);
}
}
// Observer for dynamically added content
function setupMutationObserver() {
const observer = new MutationObserver((mutations) => {
mutations.forEach((mutation) => {
mutation.addedNodes.forEach((node) => {
if (node.nodeType === Node.ELEMENT_NODE) {
applyDarkMode(node);
}
});
});
});
observer.observe(document.body || document.documentElement, {
childList: true,
subtree: true
});
return observer;
}
// Initialize dark mode :yippee:
function initDarkMode() {
// Inject global CSS immediately
injectGlobalCSS();
// Apply dark mode to existing elements
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', () => {
applyDarkMode();
setupMutationObserver();
});
} else {
applyDarkMode();
setupMutationObserver();
}
// Handle dynamically loaded content
window.addEventListener('load', () => {
setTimeout(() => applyDarkMode(), 1000);
});
}
// Public API for customization
window.DarkModeUserscript = {
config: config,
applyDarkMode: applyDarkMode,
addPreservedColor: (color) => {
config.preserveColors.push(color);
},
removePreservedColor: (color) => {
const index = config.preserveColors.indexOf(color);
if (index > -1) config.preserveColors.splice(index, 1);
},
addExcludeSelector: (selector) => {
config.excludeSelectors.push(selector);
},
refresh: () => {
document.getElementById('dark-mode-userscript')?.remove();
initDarkMode();
}
};
// Start the script
initDarkMode();
// Console info
console.log('Velkommen to the Dark Side. Access customization via window.DarkModeUserscript');
})();