This is a suggestion with two parts. Firstly, it would be nice when looking at palettes in lospec if there was a function to be able to see similar palettes to the one being viewed. It would an added bonus if you could filter the similarity (number of colors, specific colors in the palette, similar saturation levels, etc). Secondly, I think this could be interesting to assess the palette's similarity to other palettes already submitted. I wonder if it could also be shown as a percentage? This also might be useful for moderators to ensure that palettes are not plagiarized or overly similar to another one.