Both: keep all three panels, and you can have two sets of tree view and property view.TreeView and PropertyView: split tree view and property view into separate panel.Combo View: combine tree view and property view into one panel.Selection of the size for the toolbar iconsĬustomization how the tree view is shown in the panel (restart required). For technical details about the style sheets, see themes. Style sheets define how the user interface of FreeCAD looks. Place a file named background.png in the Images folder, and uncheck/check this option to see the changed file. $HOME/Library/Preferences/FreeCAD (on MacOS). The image can be changed by adding the folders Gui/Images in the folder: This option only has an effect if no Style sheet is selected. If checked, the background of FreeCAD's main window will by default consist of tiles of this image: Specification how many files should be listed in the recent files list. Lists the available preference packs and also allows you to save new packs. Preference packs introduced in version 0.20

Needs FreeCAD to be restarted to take effect. If checked, the numerical keypad decimal separator will be substituted with the locale's separator. Substitute decimal separator introduced in version 0.20 If checked, the decimal separator of the selected language is used. Use selected language number format introduced in version 0.20 Selection of the language of the FreeCAD user interface

On the General tab you can specify the following:

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