this is the Covert 3 artwork:

the symbols are a cipher. the big yellow ones are "covert3".

the small ones behind those are the artist names.

the light grey sqares are obscured but we know a symbol is there. the dark grey squares are obscured and we don't know if something is there or not.

click "show solution" to see the solution:

click this to reset:

try to solve it yourself, if you want: