use the following keys: OPERATORS flag - start/reset space - start drawing left arrow - draw left right arrow - draw right up arrow - draw up down arrow - draw down COLORS r - red y - yellow g - green b - blue o - orange m - magenta p - pink v - violet w - space/white d - default/black THICKNESS 1 - change thickness by x1 2 - change thickness by x2 3 - change thickness by x3 4 - change thickness by x4 5 - change thickness by x5 6 - change thickness by -1
