folder art filenames should not be case sensitive even if the underlying file system is.
I am new to bliss and recently set myself up with bliss rationalising my Synology Audio Station popular music. A number of albums were missing cover art so I located and installed some. bliss continued to flag a number of these albums as non compliant/missing art. It turns out that in the failing cases I had somehow installed Folder.jpg instead of folder.jpg. My first thought was to add Folder.jpg as an acceptable name but it turns out that you cannot have two names which differ only by case and I had to go back and change them all by hand.
This is not a major problem but it is quite difficult to spot especially for a new user. It also means that it is possible to create a perfectly compliant library on a windows system and have it non-compliant if it is later moved to, for example, a linux based NAS.
Audio station on linux is case insensitive in this situation and I think it would be useful if bliss followed suit. An alternative (and poorer, imho) solution would be to allow both folder & Folder (and other case-differentiated alternatives) to be specified as valid folder art names.
If we just supported different cases in the filename field, would that work?
Looking at the audio station documentation, it supports folder, Folder, FOLDER, cover, Cover, COVER, albumart, Albumart, AlbumArt, ALBUMART. Maybe the easiest would be a "Support all Audio Station options" button?