Rocket.Chat.ReactNative/app/presentation/UnreadBadge/getUnreadStyle.ts

import { themes } from '../../lib/constants';

export const getUnreadStyle = ({ unread, userMentions, groupMentions, theme, tunread, tunreadUser, tunreadGroup }: any) => {
	if ((!unread || unread <= 0) && !tunread?.length) {
		return {};
	}

	let backgroundColor = themes[theme].unreadColor;
	const color = themes[theme].buttonText;
	if (userMentions > 0 || tunreadUser?.length) {
		backgroundColor = themes[theme].mentionMeColor;
	} else if (groupMentions > 0 || tunreadGroup?.length) {
		backgroundColor = themes[theme].mentionGroupColor;
	} else if (tunread?.length > 0) {
		backgroundColor = themes[theme].tunreadColor;
	}

	return {
		backgroundColor,
		color
	};
};