(Solved) How to change the color of the glow effect around a sprite?

In my new game, I’m trying to change the color of the glow effect. The default setting says 255;255;255 for a white glow. When I try to change it to red, 255;0;0 - it shows me this error:

I have also tried to add quotes around the color number. This doesn’t help as it says text is expected.

Does anyone know what the problem might be?

Thank you!

Update: I fixed it by putting it in as a string instead of a number.