Make a new image in PSP.
Click , and if you don’t have the small ‘Tool Options’ box open, right click and select ‘Tool Options’.
Go to the colour palette and click the tiny black arrow, then select ‘Gradient’ and pick colours to use.
This is what my image looks like so far:
Click , and copy these settings in your ‘Tool Options’ box.
Now simply draw over your image, making whatever pattern you like.