ColorObserver

Simple TypeScript + React utility that detects the computed character color (the CSS color property) in an element, checking for mouse and focus events across all parents.

This is useful for icons that adapt to light and dark themes.

Example

import { ColorObserver } from "com.hydroper.colorobserver";
import { useEffect, useRef } from "react";
import Color from "color";

const myRef = useRef(null);

useEffect(() => {
    const colorObserver = new ColorObserver(myRef.current, (color: Color) => {
        console.log("light =", color.isLight());
    });

    return () => {
        colorObserver.cleanup();
    };
}, []);