Variable in a RGB expression

How do I give a...

rgb(red, green, blue) color attribute,

the values of centain Variables.

For instance:

A variable called Red changes from 100 to 255, during the game.

So that I want to make:   "rgb(Red, 25, 25)"

But this, just doesn't work because it asks me to use strings...

Anyone could provide help on this?

"rgb("&red&","&green&","&blue&")"

Thanks! It works properly.

I'm tying to use this here:

https://www.dropbox.com/s/v3ni0y0gnvlcmrp/waves.capxhttps://www.dropbox.com/s/v3ni0y0gnvlcmrp/waves.capx

My aim is to show a graph is a cosinus and then draw lines from white to black depending on the Y value showed.

How do you like the way It's being build?

Im guessing that's Podes Svg plug you have in there?

I dont have it, but I would suggest perhaps using Yanns polygon plug instead.