thank you! @kalischuchhardt

did anything change in the manifest file? if nothing this PR need not change it

// LISTEN FOR STORAGE CHANGES TO UPDATE THE BEHAVIOR INSTANTLY
// CHECKS CHROME STORAGE ON CONTENT SCRIPT LOAD AND INITIALIZES

we don't need to monitor such for every feature

disable_hold_to_play_2x: {
component: 'switch',
text: 'disableHoldToPlay2x',
value: false,
},

code belonging to your feature can run conditionally, like:
if (ImprovedTube.storage.disable_hold_to_play_2x) { ImprovedTube.disable_hold_to_play_2x(); }

--

additionally (optionally) we got a section to immediately react on toggling off or on, without reloading youtube if any necessary or convenient, you can:

      if (message.key === "disable_hold_to_play_2x" )
        { if (ImprovedTube.storage.disable_hold_to_play_2x === false) { //anything to remove/undo/clean? 
        } else { //any introduction/animation to show?    
        }  
      }