No Extension Popup / Unable to edit color settings in Firefox

[stillgreyfox]

Thanks for writing and open-sourcing such a great tool!

I first installed waspline in Firefox, and it works, giving me basic blue and red 50% gradient colored text.

I have the Darkreader extension also installed, and found myself wanting to change the blue color to another.

I checked the extension settings page found by right-clicking the extension icon, and clicking "Manage Extension"
In the Add-ons Manager I can change the gradient % on the Options tab page for Waspline, but nothing else.

I found the source link there. I looked at the source and it looked like the functionality I wanted is / should be there.

As a sanity check, I installed on Chrome.

Sure enough, it shows a Popup with Colors 1 & 2, and the text color, along with the gradient %, in Chrome, when I click the Waspline extension icon.

Why doesn't this work in Firefox?

How could I help?