Added custom templates
Nesting colors no longer have to be picked one at a time. Next to the hand picked colors there is now a second way to dress up your brackets: custom templates. "Save as template" turns the colors you picked by hand into a named entry of your own. "Change template" opens any template, including the ones that ship with the plugin, so its name, its colors, its number of levels and its switches can be reworked, then kept with "Save" or thrown away with "Discard". Customize templates keeps the list itself in order: change or remove single entries, clear the whole list, or put the built in templates back the way they shipped. Restoring them never touches the templates you saved yourself.