none|zoom|reset|zoomReset

Configures the mapping of double-click/tap to zoom actions. Setting to none disables double-click/tap zoom. If set to zoom clicking the image zooms in one zoom step; CTRL+Click zooms out one zoom step. Setting to reset causes a single click on the image to reset the zoom to the initial zoom level. For zoomReset , reset is applied if the current zoom factor is at or beyond the specified limit, otherwise zoom is applied.