[fhars]

To me it looks like neither you nor the designer have ever used an iron on their clothes. Every iron I have ever seen had one, two and three dot markings at the appropriate positions on the temperature dial.

Or does that just happen on European irons?

[kgermino]

No that happens here (US) too. That’s what I was referring to when I said it “matches the icons on the iron itself” but it’s not a very clear sentence.

[plorkyeran]

My iron does not have a temperature dial (it has digital controls) and none of the settings have any dots or anything that resembles the tag icons in any way.