I am still on my hat-knitting fad and have been very surprised by the way in which my awareness of colour has become very much enhanced by the whole thing.
If I am knitting with lilac yarn, I seem to see lilac colours all around me in nature, not so much in non-natural settings.
My latest creation is multicoloured, as you can see:

While working on it, I kept seeing similar types of combinations out on my travels. This is one example:

And, I can’t resist yet another fairy door:

Yes, call me a mad hatter, if you want!