[AlphaCommerceHub] How to set a logo for the «Show Merchant Logo» option?

The «Show Merchant Logo» option is available in a merchant interface’s pay page screen in the «Configuration» block:

But I do not see there can I set a logo:



See also:

I have got a response from the AlphaCommerceHub support:

The logo is uploaded by our support staff, I’ve uploaded a logo for your account in UAT so that you have something there.

There is no merchant upload feature at present.