Describe the Suggestion

I would like that you could color the linked controller using an an new block.
As you can see in this beautiful image below:

You could add in the upper row, anothers frequencies. But those frequencies receive and do not send.
By right clicking on the new block with a dye, you could color the new block.
Like in the image below:

The chosen color will appear on the linked controller on the button. Wich button to colorise? The one below the new frenquencies.
The id, is for which linked controller it will

I hope you understand, I not an english speaker.

Screenshots and Videos

Idea for the new GUI for the linked controller

Idea for the coloration with dye on the new block:

Additional Context

No response