I am curious what is the difference between the Primary color palette colors and the secondary? Does secondary mean that they will only be used on top of the primary ones. For example, @Secondarydarker will be font color for @Primarydarker backgrounds? Optimally, should the colors from any of the 3 color palette always be different? I know its pretty easy to clone a style and test out what each change does(in a lot of cases) but I am just wondering if there is a pattern or a standard way of creating the palette. I have a list of 18 (11 background and 7 font) colors used on an older site and was wondering, if i wanted to try to recreate that by first using the palettes, would I just add those colors from darker to lightest and how would I know to which palette section to add to?