and generate unlimited abstract.
The idea is simple.
You can donate one single brush stroke at a time. It gets saved to database.
Then the generate surprise art just takes random strokes from the pool and paints them randomly.

https://purkara.com/donate-a-brush-stroke/generate.php

I spent a little too much time on this today.

There's option to painted donated strokes with random colors or one color.

Added option to fade stroke from solid color to a set percentage of transparency.

And then I was able to generate the below pattern which I am using on a mock-up shirt shown below:

Pretty cool! I saw this idea once for a Johny Cash tribute on youtube. Instead of paint strokes you donated a picture and the whole thing got animated.
Pretty neat idea.
https://www.youtube.com/watch?v=PBmky9Tx2UM

Johny Cash is the man!

Ok the generator has cool options now to select up to 8 colors to be used for strokes.
Here i used the first 5 default colors black,white and primary red,yellow,blue.

I really enjoy this new option with the generator now.

Later version has option to taper off strokes to a percentage of original brush width.
And painting tone difference so it looks like some sort of painted stroke.

Someone suggested I try to use Product Hunt to launch the webapp so I did it'll launch tonight at midnight

Added stroke credits section on the generate art page so that it lists for example
tim - 1 stroke
anonymous - 99 strokes
so people can see which or whose strokes were used in current piece.