icon.png is served when dark_icon@2x.png is requested, even if dark_icon.png is present. #8522
Description
The problem
Where a brand icon set includes regular and dark icons, but no hDPI versions, I expect dark_icon.png to be served when dark_icon@2x.png is requested but instead icon.png is served. This can be observed when viewing an integration page in home assistant while in dark mode (which requests the hDPI version).
This seems like incorrect logic, or a least is unexpected.
e.g.
dave@morty:/tmp$ curl -s https://brands.home-assistant.io/oasissmart/icon.png | md5sum
c504c9e7e8c3e06fa212341104f53d45 -
dave@morty:/tmp$ curl -s https://brands.home-assistant.io/oasissmart/dark_icon.png | md5sum
e591847083bf49977c1cc81906b39aa2 -
dave@morty:/tmp$ curl -s https://brands.home-assistant.io/oasissmart/dark_icon@2x.png | md5sum
c504c9e7e8c3e06fa212341104f53d45 -
Additional information
Correctly rendered (dark_icon.png) in integrations page:
Unexpectedly rendered icon.png as substitution for dark_icon@2x.png:
