; Define an 11x1 image
(define image (image.new 11 1))
(image.show image)
; Define the endpoint colors for convenience
(define start-color (rgb.new 0 0 255))
(define end-color (rgb.new 255 0 0))
; Set pixel (0,0) to blue
(image.set-pixel! image 0 0 start-color)
; Set pixel (10,0) to ending color
(image.set-pixel! image 10 0 end-color)
; Set the middle pixels
(image.set-pixel image 5 0 (rgb.new 128 0 128))