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. Diff tool preferencesSet preferences for the Diff tool. For example, you can set the tool to ignore case or whitespace, 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.Code Editor error messagesA list of Code Editor error messages. For messages that are not self-explanatory, additional information is provided.