Data update

Task/Grayscale-image/MiniScript/grayscale-image.mini

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+greyedColor = function(colr)
+	clist = color.toList(colr)
+	lum = [0.2126, 0.7152, 0.0722]
+	
+	red = clist[0] * lum[0]
+	green = clist[1] * lum[1]
+	blue = clist[2] * lum[2]
+	grey = red + green + blue
+	return color.fromList([grey, grey, grey, clist[3]])
+end function
+
+toGreyScale = function(img)
+	greyImg = Image.create(img.width, img.height)
+	for x in range(0, img.width - 1)
+		for y in range(0, img.height - 1)
+			greyed = greyedColor(img.pixel(x, y))
+			greyImg.setPixel x, y, greyed
+		end for
+	end for
+	return greyImg
+end function
+
+clear
+
+// The turtle and color wheel images are included with MiniMicro
+turtle = file.loadImage("/sys/pics/animals/turtle.png")
+greyTurtle = toGreyScale(turtle)
+gfx.drawImage turtle, 0, 0
+gfx.drawImage greyTurtle, turtle.width, 0
+
+colorWheel = file.loadImage("/sys/pics/ColorWheel.png")
+greyWheel = toGreyScale(colorWheel)
+gfx.drawImage colorWheel, 0, 320
+gfx.drawImage greyWheel, greyWheel.width, 320