[Script] Dim mission helper from LSSMv4

// ==UserScript==
// @name Dim LSSMv4 mission helper
// @description sets opacity on mission helper from plugin LSSMv4 - so the underlying text is still a bit visible
// @namespace Leitstellenspiel
// @match https://www.leitstellenspiel.de/missions/*
// @version 1
// @grant none
// ==/UserScript==

function mpDimLssmv4MissionHelper()
{
    if (document.querySelector('#lssmv4-missionHelper') != null)
    {
        document.querySelector('#lssmv4-missionHelper').style.opacity = 0.71;
        console.log("dim found");
    }
    else
    {
        window.setTimeout(mpDimLssmv4MissionHelper, 500);
        console.log("dim waits");
    }
}
window.setTimeout(mpDimLssmv4MissionHelper, 1500);