TokenURI
TokenURI returns the Settler image as an SVG data URI. Wallets such as Adena read TokenURI directly as the token image, so this must be the image itself. The metadata lives in TokenMetadata.
Command
gnokey query vm/qeval -remote "https://rpc.gno.land" -data "gno.land/r/g17khqpukees4237dtn3astzapmp462vjhsz6st4/settlers/nft.TokenURI()"
Result