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Shinymas Audio Keeper

Keep ShinyColors BGM playing in background

// ==UserScript==
// @name            Shinymas Audio Keeper
// @namespace       https://greasyfork.org/ja/users/1492018-sino87
// @version         1.0
// @description     Keep ShinyColors BGM playing in background
// @match           https://shinycolors.enza.fun/*
// @run-at          document-start
// @license         MIT
// @icon            http://www.google.com/s2/favicons?domain=https://shinycolors.idolmaster.jp/
// ==/UserScript==

(function() {
  'use strict';

  window.addEventListener('blur', ev => ev.stopImmediatePropagation(), { capture: true });
  document.addEventListener('visibilitychange', ev => ev.stopImmediatePropagation(), { capture: true });
})();