New filter - DrawLine.
New filter - RestoreEverySecondLine
New filter - EraseEverySecondLine
P.S. Yes, is so hard - write code for simple line. :)
(*) Brightness
Fill & DrawTriangle is under construction.
(*) Convert to B\W image
(*) Fill all
(*) Noise
(*) Blur (Gauss blur)
(*) Horizontal lines
(*) Vertical lines
(*) Add red
(*) Add blue
(*) Add green
(*) Draw circle
(*) Draw rectangle
(*) Draw torn circle
(*) Draw point
Draw triangle is under construction.