Why yes, I am in the brown heels, and they are the Banana Republic Roia t-strap sandal in dark amber. Here’s the front view:
I bought the last pair in the store on sale at the same time I bought the dress (a few months ago), so I don’t think they’re available anymore. BUT, if you do find them somewhere, I really recommend them — they’re quite comfortable for 4" heels with a ½" platform!