The skin menu offers all functionality regarding skins. See Skin Menu for more information.
Use this menu to select board view transformations. See Transformation menu for more information.
Use this menu to adjust the maximal zoom factor.
JSoko tries to scale the displayed graphics so the board of the level fills all available space of the GUI. This includes zooming in. However, sometimes the graphics of a skin aren't of the quality to zoom in too much. Hence, the zoom factor can be limited by this setting.
You can switch displaying walls on and off with this check box.