Can you recommend an LED strip light that can have an unlighted break in it?

I am putting a mountain feature wall in my son's new bedroom.

Starting on the right, I want to run LEDs along the topmost mountains, switch to unlit cord/wire to go around the window, and then run another set of LEDs along the topmost mountain on the left. This should give a nice sunrise effect.

Do you know of an LED kit that can do this?

Thank you!