Uploaded January 2016 | Updated September 2026, 2 hours ago

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Feb 2019: Sadly, YouTube has now removed annotations which I think is a great shame. I did have a couple on this video where for example I should have said the "main colour" instead of the dark colour and the "contrasting colour" instead of the pale colour.

I hope you will find this a better quality video (both image and especially sound!) as I know the previous video I had made on this particular topic was not very good.

Please let me know if there are other things you'd like to see in future videos