Places a simple textarea overlay on YouTube videos so you can paste in chords/lyrics & jam out!
Video demo: https://v.redd.it/iqn37wemlas61
-> When user clicks on the extension icon, bg.js runs, which in turn fires up yt.js.
-> yt.js injects HTML elements (like buttons/etc) & CSS Rules (styling for the buttons/etc) into the DOM.
-> yt.js also injects funcsTBInsertedIntoDOM.js into DOM, which contains functions to make the aforeadded buttons/etc work.
-> manifest.json is the Chrome extension requisite. The extension doesn't use any special permissions except access to the activeTab & the scripting API.
-> tsconfig.json is just the instructions for the TypeScript compiler.
-> Somehow still need to figure out how NOT to run the extension when user clicks on the icon but URL != "https://www.youtube.com/watch?v*". Need to place this restriction in the Manifest somehow, not keen on a Javascript if tab.url != check in bg.js.