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 Documentation / Mathematica / Other Information / Menu Commands / Special NeXT Menus / Notebook Menu  /
Palettes

▪ Palettes lists currently available palettes.
▪ Palette files are kept in SystemFiles/FrontEnd/Palettes. Palette files added to this subdirectory will be listed in the menu when you restart Mathematica.
▪ See the Mathematica book: Section 1.3.6.