Window Effects

[Team G]

As I look at coaches for sale from time to time I see ones with the paint graphics carried through the exterior windows, on what I assume is an applied see-thru treatment. So my question/request for opinion is... Is this factory or aftermarket? If factory option - cost - have never seen it listed buy MFG as option? Anyone with this option care to comment on visibility outward. Like/dislike. Special care? DW thinks it would limit/ruin outward view, I think its a lot like dayshades as far as viewing, just permanent.
Your take?

[luvlabs]

I've only seen it on coaches that might appeal to first time buyers. Not sure how it is applied but it could be a material like window tinting film.