A spiral pattern. Made with four colours. The thickness of the spirals gradually increase in size.

Use four for the spirals, then a fifth colour, or re-use one of the colours for the edging.

These are all my own designs. Some are free, some cost.

I use industry standard terms in both US and UK terms. Every pattern is thoroughly checked, and is tested by one to three people in both versions. And I am always available for help.

With the free patterns, I am not as thorough, for obvious reasons.