Mask the line and apply an eliptical gradient fill inside the mask.
Definition: Computer rage is a heightened physiological response with associated feelings of anger and frustration resulting from using a computer or other complex electronic device. It may result in the physical assault of the computer or similar item. Computer use often leads to verbal abuse and occasionally physical violence towards the object. Computer rage may be caused by distress due to a hardware or software problem which the enraged person is unable to correct.