This is a nostalgic piece for us. Evoking our childhood, where we found escape and refuge from a confusing and sometimes painful world into a world of colour, mathematics and pattern. We hope that the controls in the UI are clear, intuitive and will yield their secrets easily with a little playful experimentation. The work is a useful tool for palette exploration. In addition: H/h on the keyboard will hide the UI U/u will bring it back P/p will render a version of the current artwork without the texture overlay - the intention being that this can be combined with setting all four colours to white to produce a colouring book page.