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local y = (PlayerMouse.Y - Brightness.AbsolutePosition.Y) / Brightness.AbsoluteSize.Y
Brightness.Picker.Position = UDim2.new(.5, 0, y, 0)
v = 1 - y
Brightness.ImageColor3 = Color3.fromHSV(h, s, 1)
Preview.ImageColor3 = Color3.fromHSV(h, s, v)
ChangeColorEvent:FireServer(Preview.ImageColor3)