Customizes editors and the editor framework of the platform. Specifies global preferences for the editor framework. Specifies the location of editor tabs. Can be either 'top' or 'bottom'. If 'true', editor tabs will be hidden if there is only a single editor for a given document. If 'false', editor tabs will always be present. May only be 'true' if the value of tab-position is 'top'. If 'true', editor tabs are rendered with a gradient visual style like dockable tabs. If 'false', editor tabs are rendered in a flat visual style. Default is 'false'. Indicates that tabs are at the top. Indicates that tabs are at the bottom.