Expo Config Plugin to disable forced Dark mode.

withDisableForcedDarkModeAndroid.js

// disable forced dark mode to prevent weird color changes on
// certain android devices (Xiaomi MIUI and others enforcing dark mode with view analyzing)
// create a file like "plugins/withDisableForcedDarkModeAndroid.js". Insert this content and edit your app.config.js/app.json

/*
"expo": {
   ...
   ...
   ...
   "plugins": [
       ...,
       ...,
       './plugins/withDisableForcedDarkModeAndroid.js'
   ]
*/

const {
    createRunOncePlugin,
    withAndroidStyles,
    AndroidConfig
} = require('@expo/config-plugins');

function setForceDarkModeToFalse(styles) {
    styles = AndroidConfig.Styles.assignStylesValue(styles, {
        add: true,
        parent: AndroidConfig.Styles.getAppThemeLightNoActionBarGroup(),
        name: `android:forceDarkAllowed`,
        value: "false",
    });

    return styles;
}

const withDisableForcedDarkModeAndroid = (config) => {
    return withAndroidStyles(config, (config) => {
        config.modResults = setForceDarkModeToFalse(config.modResults);
        return config;
    });
};

module.exports = createRunOncePlugin(withDisableForcedDarkModeAndroid, 'disable-forced-dark-mode', '1.0.0');

I would like to remind you that plugin mods only run in the expo prebuild process, that is, for the changes to take effect it is necessary to generate an .APK (for testing) or .AAB (for playstore).

I don't know why this setting doesn't apply to the expo client, I believe it's possible to generate the .android folder with the npx expo prebuild command and run it on any android emulator (without expo client), that might solve the problem :)

Tested on Xiomi Redmi 9 it worked after building an .apk

References:
How to works plugins and mods
React Native Expo Android Dark Mode issue
Problem when trying to disable dark mode on Android
How to disable night mode in my application even if night mode is enable in android 9.0 (pie)?

Awesome
It work for me

Worked for me too.

Worked here, thanks for this.