>> Pick a color with expression

Hi,

on this example i try to control my blur size with "r(500,500)"
I thought it will take the value of my red pixel at this coordinates,
but no.
Do you know why ?

Code:

set cut_paste_input [stack 0]
version 6.0 v7
ColorWheel {
 inputs 0
 gamma 0.45
 name ColorWheel1
 selected true
 xpos 3250
 ypos -1582
}
Blur {
 size {{r(500,500)}}
 name Blur1
 selected true
 xpos 3250
 ypos -1482
}


(if I use "r(x,y)" in the expression node it work, but not here) :confused:

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