This program, 替换字体的中文部分为雅黑, is a Chrome add-on that allows users to replace Chinese characters in web fonts with Microsoft Yahei. It is suitable for users who want to replace the Simsun and Simhei fonts with Yahei. To use this add-on, users must also set their default Chrome font to either Microsoft Yahei or Segoe UI. The add-on also replaces some English characters with the Segoe UI font for a more personalized effect.

The code for this add-on is based on a Japanese extension called "強制メイリオちゃん MSゴシック置き換え版" and the developer would like to express their gratitude to the original author. The initial version of this add-on is.

Please note that this add-on was developed in response to an issue in Chrome 62 where bold fonts were being replaced with regular fonts, causing the font to appear blurry when the bold part was blocked. The developer believes that this is a font issue in Chrome and hopes that this add-on can provide a temporary solution.