Code Editor Reference Reference information for Code Editor. Code Editor preferencesSet preferences for the Code Editor. For example, you can set the default diff mode or the color and font preferences. Customize Diff tool preferencesSet preferences for the Diff tool. For example, you can set the tool to ignore case or white space, or specify the color used.ViewsInformation about Code Editor views. Keyboard ShortcutsInformation about Code Editor keymaps. vi Commands ListA listing of vi commands currently implemented in Code Editor.