Applying tint to photo

[jojowls]

my question is how can i apply an orange tint intensity of 40 to a photo

i tried to do part of it but am confused after that

file = pickAFile()
pic = makePicture(file)
w = getWidth(pic)
h = getHeight(pic)
intensity = requestIntegerInRange("What intensity?",1,99)
tintColor = pickAColor()
samplePicture = makeEmptyPicture(1,1)
samplePixel = getPixel (samplePicture,0,0)

setColor (samplePixel,tintColor)
tintRed = getRed(samplePixel)
#printNow (tintRed)
tintGreen = getGreen(samplePixel)
#printNow (tintGreen)
tintBlue = getBlue(samplePixel)
#printNow (tintBlue)

show (pic)

thx in advance

[kudos]

(I am not close to my python interpreter, so I don't get to test it....)

But isn't orange, 255,160,0 i RGB colors? I assume 40 tint, means 40% orange, so what would happen if you added the following to each pixel:

R = (R + (255*0.4))%255
G = (G + (160*0.4))%255
B = (B + (0*0.4))%255

Would that give you a orange tint?