There are 3 formats for color fonts being standardized; 1. Google's proposal as used in Noto Color Emoji among other fonts 2. Microsoft's proposal 3. SVG-based format (mainly proposed by Mozilla and Adobe). There's also a proprietary format used by Apple on Mac OS/iOS.标准化的彩色字体有 3 种格式； 1. Google 的提案，用于 Noto Color Emoji 等字体 2. 微软的提案 3. 基于 SVG 的格式（主要由 Mozilla 和 Adobe 提出）

There are 3 formats for color fonts being standardized; 1. Google's proposal as used in Noto Color Emoji among other fonts 2. Microsoft's proposal 3. SVG-based format (mainly proposed by Mozilla and Adobe). There's also a proprietary format used by Apple on Mac OS/iOS.
标准化的彩色字体有 3 种格式； 1. Google 的提案，用于 Noto Color Emoji 等字体 2. 微软的提案 3. 基于 SVG 的格式（主要由 Mozilla 和 Adobe 提出）。 Apple 在 Mac OS/iOS 上还使用一种专有格式。

Windows currently supports one of them (quite naturally, it's what MS proposed) and does not support a format used in Noto Color Emoji, yet.
Windows 目前支持其中一种（很自然，这是 MS 提出的），但尚不支持 Noto Color Emoji 中使用的格式。

—— NotoColorEmoji.ttf not a valid font in Windows · Issue #43 · googlefonts/noto-emoji

https://en.wikipedia.org/wiki/OpenType#Color_fonts

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NotoColorEmoji.ttf not a valid font in Windows · Issue #43 · googlefonts/noto-emoji

I've tried installing NotoColorEmoji.ttf in Windows 10 and it is not a valid font to install. From https://www.google.com/get/noto/ I've downloaded and extracted the font from both the indi...