Keeps Zhihu’s theme in sync with your OS theme.
// ==UserScript==
// @name ZhihuThemeSync
// @name:zh-CN 知乎自动深色模式
// @name:zh-TW 知乎自動暗色模式
// @namespace http://tampermonkey.net/
// @version 2025-10-14 .3
// @description Keeps Zhihu’s theme in sync with your OS theme.
// @description:zh-CN 让知乎的主题与系统主题保持同步。
// @description:zh-TW 讓知乎的主題與系統主題保持同步。
// @author Ethan Dong
// @match https://*.zhihu.com/*
// @icon https://www.google.com/s2/favicons?sz=256&domain=https://www.zhihu.com/
// @grant none
// @run-at document-start
// @license MIT
// ==/UserScript==
(function() {
const themeMedia = window.matchMedia('(prefers-color-scheme: dark)');
function updateThemeStatus(e){
console.log("Triggered")
let url = new URL(window.location.href);
let params = url.searchParams;
let sysTheme = "";
let CurrentPageTheme = "";
if (params.has("theme")){
CurrentPageTheme = params.get("theme")
}else{
sysTheme = null
}
if (e.matches){
sysTheme = "dark"
params.set("theme","dark")
}else{
sysTheme = "light"
params.set("theme","light")
}
if (CurrentPageTheme = null || sysTheme != CurrentPageTheme){
window.location.href = url.toString();
console.log("reloaded")
}
}
updateThemeStatus(themeMedia);
themeMedia.addEventListener('change', updateThemeStatus);
}
)();