rambox app, dark theme for app bar and tabs + custom css in app

rambox_apply_css_to_app.js

function applycss(css){
    var head = document.getElementsByTagName('head')[0];
    var s = document.createElement('style');
    s.setAttribute('type', 'text/css');
    s.appendChild(document.createTextNode(css));
    head.appendChild(s);
 }
applycss(`

/* put custom css here */

`);

rambox_dark_bar_and_tabs.js

// author https://github.com/streetturtle
// https://github.com/ramboxapp/community-edition/issues/107#issuecomment-363158680

document.querySelector('.x-tab-bar').style.backgroundColor='#20272D';
document.querySelectorAll('.x-tab').forEach(function(el){el.style.backgroundColor='#40474D';});



// how to use:
// open dev console (Window -> Toggle Developer Tools -> Console)
// paste + enter

// does not survive restart