Stacks Project · Dark Mode Reader

📌 安装书签

📌 Install the bookmark

在任意 Stacks Project 页面点一下书签即可切换深色模式：第一次点击开启深色，之后每点一次就在深色与浅色之间切换。

On any Stacks Project page, click the bookmark to toggle dark mode: the first click turns dark mode on, and every click after that switches between dark and light.

⚠️ 不要用 ⌘D / Ctrl+D「添加书签」保存本页——那样存下来的网址是本页地址，点它只会跳回这一页，深色模式不会生效。请用下面任一种方式安装；装好后请确认书签的网址以 javascript: 开头。

⚠️ Do not use ⌘D / Ctrl+D “Add bookmark” on this page — that stores this page's address, so clicking it only comes back here and dark mode never runs. Use method A or B below. Either way, check that the bookmark's URL starts with javascript:.

方式 A · 拖拽（最快）

Method A · Drag (fastest)

🌙 Stacks Dark

按住上面的 「🌙 Stacks Dark」 按钮
拖到浏览器的书签栏
打开任意一个 Stacks Project 页面
点击书签栏里的 🌙 Stacks Dark（再点一次即切回浅色）

Press and hold the 🌙 Stacks Dark button above
Drag it to your browser's bookmarks bar
Open any Stacks Project page
Click the 🌙 Stacks Dark bookmark (click again to switch back)

方式 B · 复制代码后手动新建书签（最可靠）

Method B · Copy the code, then create the bookmark by hand (most reliable)

拖拽失败、或不确定书签存对没有时用这个方式——手动粘贴不会存错网址。

Use this when dragging fails or you are unsure the bookmark was stored correctly — pasting by hand cannot capture the wrong URL.

下面是完整代码。复制按钮不可用时，直接选中这一段复制即可：

The full snippet is below. If the copy button is unavailable, just select this block and copy it:

点上面的按钮复制代码（javascript: 开头也要一起复制）
在书签栏空白处右键 → 「添加网页…」
名称填 Stacks Dark
⚠️ 把「网址」栏里预填的本页地址整段删掉，再粘贴刚复制的代码
（这一步漏掉，存下来的就是本页网址——点它只会跳回这一页。）
保存 → 打开任意 Stacks Project 页面 → 点这个书签

Click the button above to copy the code (keep the leading javascript:)
Right-click the bookmarks bar → “Add page…”
Name it Stacks Dark
⚠️ Delete the pre-filled address in the URL field entirely, then paste the snippet
(Skip this and the bookmark stores this page's address — clicking it just comes back here.)
Save → open any Stacks Project page → click the bookmark

💡 更稳妥的做法：按 ⌘⌥B 打开书签管理器 → 右上角 「添加新书签」—— 那里的网址栏是空的，直接粘贴不会存错。

💡 More reliable: press ⌘⌥B to open the bookmark manager → “Add new bookmark”. Its URL field is empty, so a paste cannot capture the wrong address.

✅ 自检：编辑该书签，网址应以 javascript:(function(){ 开头、以 })(); 结尾。若显示的是 https://kanghelyu.org/…，说明存错了，请删掉重做。

✅ Self-check: edit the bookmark — its URL should start with javascript:(function(){ and end with })();. If it shows https://kanghelyu.org/…, it was saved wrong; delete it and redo.

方式 C · 油猴脚本（装一次，永久生效）

Method C · Userscript (install once, always on)

不想折腾书签就用这个：装一次之后，每个 Stacks Project 页面都会自动应用深色模式，不用点任何东西。需要先装 Tampermonkey 扩展。

Skip the bookmark entirely: install this once and every Stacks Project page gets dark mode automatically, with nothing to click. Requires the Tampermonkey extension.

stacks-dark.user.js

装好 Tampermonkey 扩展
点上面这个链接，Tampermonkey 会弹出安装页 → 点「安装」
打开任意 Stacks Project 页面，应当自动变黑

Install the Tampermonkey extension
Click the link above — Tampermonkey opens its install page → click “Install”
Open any Stacks Project page; it should turn dark on its own

开启后，页面顶部导航栏会出现一个切换开关，之后不点书签也能随时切换；选择会被记住。

Once active, a switch appears in the page header, so you can toggle without the bookmark. Your choice is remembered.

⚡ Ctrl+Shift+D 快捷键

⚡ Keyboard shortcut

在任何 Stacks Project 页面上按 Ctrl+Shift+D（Mac: Cmd+Shift+D）一键切换深色模式。注意：需要先用书签或控制台方式注入一次脚本，快捷键才会生效。

Press Ctrl+Shift+D (Mac: Cmd+Shift+D) on any Stacks Project page to toggle dark mode. Note: the script must be injected once (via bookmarklet or console) before the shortcut works.

🖥 控制台注入（临时测试）

🖥 Console injection (quick test)

打开 Stacks Project 页面的开发者工具（F12 → Console），粘贴以下代码然后回车：

Open developer tools on any Stacks Project page (F12 → Console), paste the code and press Enter:

// 已注入过则直接切换，否则加载脚本与样式表
if (window.__stacksDarkToggle) { window.__stacksDarkToggle(); }
else {
  var s = document.createElement('script');
  s.src = 'https://cdn.jsdelivr.net/gh/kanghelyu/kanghelyu.github.io@db1add94eb02e94f8764c63e42ce2763a2e8148a/stacks-dark/dark-mode.js';
  document.body.appendChild(s);
  var l = document.createElement('link');
  l.rel = 'stylesheet';
  l.href = 'https://cdn.jsdelivr.net/gh/kanghelyu/kanghelyu.github.io@db1add94eb02e94f8764c63e42ce2763a2e8148a/stacks-dark/dark-mode.css';
  document.head.appendChild(l);
}

🖼 效果预览

🖼 Preview

0001 Section 1.1

Lemma 10.2 — Let 0001 be a scheme and let $X$ be a ...

Lemma 10.3. Let $f : X \to Y$ be a morphism of schemes. The following are equivalent:

$f$ is locally of finite type,
for every affine open $V \subset Y$, $f^{-1}(V)$ can be covered by affines ...

📂 静态文件 CDN 链接

📂 CDN file links

你也可以直接引用这些文件（jsDelivr CDN，带正确 MIME 类型）：

You can also reference these files directly via jsDelivr CDN (correct MIME types included):

dark-mode.css dark-mode.js