How to change the color of light that goes through a colored window?

[Cbrrah (Cbrah)]

I’m trying to change the color of light when it comes through a window.
What I’m trying to achieve:

What happens:

Does anybody know how to recreate this effect?

[Crazedbrick1]

You’d have to shine a light through or past the window to create to illusion that light is really shining through.

[Scottifly]

How about a SurfaceLight in the window Part itself?