Color of side profiles of roller shutters

Hello, we are in the middle of planning our house with 2 full floors. The plot has a slope and we plan to make use of it. In the basement, there will be a nice room at the south/west corner, but we have building regulations that do not allow a 3rd full floor, so we cannot choose the window height + sill height in the basement as in the other floors. To get more light, we have defined double-wing windows with each wing 1.135m wide -> 2.27m width. The builder told us it is unclear whether it can remain with 1 roller shutter or if it might be divided. So the question arises regarding the appearance - we plan window frames in RAL 7012 basalt gray. 1) With the window closed from the inside, the roller shutter profiles in the middle would hardly be visible - however, they would be in the field of vision when the window is open. 2) From the outside, these roller shutter profiles are always visible - and then? We have only sampled the roller shutter slats. What color are the roller shutter profiles usually? Like the window frames or like the slats? Thank you! tauber19

Yes, this is just a guess here. Your window supplier should be able to answer the question immediately.

I don't quite understand why the roller shutter should be divided at 2.27m, or did I misunderstand? We had a roughly 3.50m wide, floor-to-ceiling roller shutter in a previous apartment, that is no problem.
Best regards
Sabine

we are in the middle of planning our house

My first advice would be not to gather tips here in bits and pieces.

To get more light, we have defined two-wing windows with 1.135m wide wings each -> 2.27m width. [...] 1) with the window closed from the inside, you would hardly see the profiles of the roller shutters in the middle - however, they would be in the field of view when the window is open.

As far as I understand, it is about a 2.27m wide window, decorated in the middle with a twin guide rail for a two-part roller shutter. This alone does not sound like you should - especially knowing that you can get advice in this forum - work on your plan with just a "builder". When I also see your wardrobe thread, I fear in the end fifteen threads on individual topics - "best" without cross-linking among themselves, so that the advisors cannot help holistically.