Shell and Chevron Icons

[JasonSolaris]

Hi. I'm just got a TomTom One 3rd Generation for Christamas and was trying it out for a couple of days.. After getting the latest map update, I noticed that Shell and Chevron icons started to appear.. Where they icons added with the last map update?

Also, how are the icons assigned? Does it just need to have the name Shell or Chevron in the title? I think there's a couple that still show the generic gas icon..
Thanks