Map Layer widget - how to change background

[EW1_GIS]

Hello, I am struggling to find a solution to this, so have finally signed up to the community! 

I have added map layers (widget) to a fixed panel but would love to set the background to transparent. It is currently white.

I have successfully changed the background colour to transparent on my legend widget which is also set to a fixed panel. There doesn't seem to be the same option within the content settings. I've also attempted to amend the theme but this doesn't allow for transparency either, nor does changing the colour impact the background of the map layers.

Any advice - or a simple, nope this cannot be done would be most helpful! 

thanks 

[Ed_ · Accepted solution]

but won't your background be covered with a map anyways?

[DanielFox1]

Hi @EW1_GIS I know this has been marked as solved but I don't believe that out of the box the add data widget has the style capability to make its background transparent. If you have access to the dev edition of Experience Builder you might be able to get it working but can't be certain.