I would like to see a little more customization ability in colors and such. The ability to select/input a certain brand color for titles, rooms names on the searches, etc.
You actually can do quite a bit of this using CSS, Property Tags, and our WebAssist service.
https://www.ownerreservations.com/support/articles/hosted-website-css-magic
https://www.ownerreservations.com/support/articles/tags#assign-property-tag
