AtCoder Red "i"

AtCoderでiを赤くします

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 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.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

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         AtCoder Red "i"
// @namespace    https://github.com/Bigfeet30
// @version      1.0
// @description  AtCoderでiを赤くします
// @author       Bigfeet30
// @include      https://atcoder.jp/contests/*
// @license      MIT
// ==/UserScript==

document.querySelectorAll('[class^="mord mathnormal"]').forEach(el => {
  el.childNodes.forEach(node => {
    if (node.nodeType === Node.TEXT_NODE) {
      const text = node.textContent;
      if (text.includes('i')) {
        const span = document.createElement('span');
        span.innerHTML = text.replace(
          /i/g,
          '<span style="color: red;">i</span>'
        );
        el.replaceChild(span, node);
      }
    }
  });
});