Ornate vision to inform about spaciousness

Ornate vision is a nice tool, but I think it would be even nicer if it would inform not only about something relatively obvious (since items’ appeal is at least vaguely known to the player), but also about something not quite so obvious but not less important such as spaciousness. This will save players from learning the exact mechanics of the space calculation and promote more intuitive building process with the help of the existing tool. If this one suggestion is not too hard to implement by itself, there is a bonus suggestion: make it also work in building designer mode, so that players’ design decisions would be informed by the tool.