Replace all fonts by preferred ones.
// ==UserScript==
// @name replace-fonts
// @namespace http://tampermonkey.net/
// @version 202312190930
// @description Replace all fonts by preferred ones.
// @author Rafael David Tinoco
// @match http*://*/*
// @run-at document-start
// @grant none
// ==/UserScript==
;(function () {
'use strict'
var fontsToOpenSans = [
'Calibri',
'Cambria',
'Candara',
'Constantia',
'Corbel',
'Georgia',
'Segoe UI',
'Trebuchet MS',
'Verdana',
'sans',
'sans-serif',
'serif',
'Avenir',
'Avenir Next',
'Comic Sans MS',
'Comic Sans',
'Lucida Grande',
'Lucida Sans',
'Roboto'
]
var fontsToCousine = [
'Monospace',
'Noto Mono',
'Consolas',
'Courier New',
'Courier',
'Monaco',
'Menlo',
'Fira Mono',
'Liberation Mono',
'Roboto Mono'
]
var fontsToLiberationSans = [
'Arial',
'Times New Roman',
'Arial Narrow',
'Tahoma',
'Helvetica',
'Helvetica Neue',
'San Francisco',
'Fira Sans',
'Noto Sans'
]
function adjustElementStyles (node) {
let fontFamily = window
.getComputedStyle(node)
.fontFamily.replace(/["']/g, '')
let site = window.location.hostname
fontFamily.split(',').some(font => {
if (fontsToOpenSans.includes(font.trim())) {
node.style.fontFamily = '"Open Sans", sans-serif'
return true
} else if (fontsToCousine.includes(font.trim())) {
node.style.fontFamily = 'Cousine, monospace'
return true
} else if (fontsToLiberationSans.includes(font.trim())) {
node.style.fontFamily = '"Liberation Sans", sans-serif'
return true
}
return false
})
}
function observeDOMChanges () {
const observer = new MutationObserver(mutations => {
mutations.forEach(mutation => {
mutation.addedNodes.forEach(node => {
if (node.nodeType === Node.ELEMENT_NODE) {
adjustElementStyles(node)
node.querySelectorAll('*').forEach(adjustElementStyles)
}
})
})
})
observer.observe(document, { childList: true, subtree: true })
}
window.addEventListener('load', () => {
document.querySelectorAll('*').forEach(adjustElementStyles)
observeDOMChanges()
})
document.addEventListener('DOMContentLoaded', () => {
document.querySelectorAll('*').forEach(adjustElementStyles)
})
})()