'Safari App Extension toolbar item greyed (but enabled) at Start page

I was wondering if it's possible to not have my safari app extension's toolbar item greyed out at the start page. I have allowed my app extension to run on all the websites (image attached). But still my app extension's toolbar item is greyed out at the start page (it is enabled though, as the the popover does open up when i click on the greyed out toolbar item on the start page). Is there any way to show my toolbar item in colour even on the Start page?

Allowing on all domains:

Allowing on all domains

Coloured icon on all websites:

Coloured icon on all websites

Greyed (but enabled) icon on the Start Page:

Greyed (but enabled) icon on the Start Page



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