Force Native Emoji Font (eg. Apple) on GitHub As Tampermonkey Script

script.js

(function () {
    "use strict";
    const originalCustomElements = window.customElements;
    const originalPropertyDescriptor = Object.getOwnPropertyDescriptor(window, "customElements");
    const newCustomElements = {
        get(name) {
            return originalCustomElements.get(name)
        },
        define(name, constructor, options) {
            if (name === "g-emoji") {
                Object.defineProperty(window, 'customElements', originalPropertyDescriptor);
                const newConstructor = class extends constructor {
                    connectedCallback() {
                        if (this.hasAttribute('tone')) {
                            this.attributeChangedCallback('tone');
                        }
                    }
                };
                return originalCustomElements.define(name, newConstructor, options);
            }
            return originalCustomElements.define(name, constructor, options);
        },
        upgrade(root) {
            return originalCustomElements.upgrade(root);
        },
        whenDefined(name) {
            return originalCustomElements.whenDefined(name);
        }
    };
    Object.defineProperty(window, 'customElements', {
        enumerable: true,
        configurable: true,
        get: function () { return newCustomElements; }
    });
})();