Oof, this hits home for me. I've got the same color blindness as the author. The camping system Ontario uses for booking camp sites has a problem similar to th

Oof, this hits home for me. I've got the same color blindness as the author. The camping system Ontario uses for booking camp sites has a problem similar to the Kayak diagram the author shows. When choosing a site on a virtual map, they are listed using red / green for availability. I can't see it at all. Luckily they offer a list view, but I wish I could choose based on the map as there are often reasons why a site is more desirable that you need to be viewing the map to understand.