Fractal rendering (By math expressions. As default staying expression for drawing Mandelbrot fractal). Arrows to move. + - to zoom. Numpad 1 (down) and Numpad 7 (up) for hue color offset changing. Numpad 12 (down) and Numpad 8 (up) for changing a multiplier of zoom changing. Please, make it working. Made very long code if it necessary.