The unfilled Polygon tool in the Curves and Polygons toolbar does not close the shape when finished. The Status Bar calls this shapes a Polyline. Therefore, I suggest the tool label be changed from Polygon to Polyline. Similarly, the unfilled Polygon (45 degree) tool should probably be relabeled the Polyline (45 degree) tool.
I support the request. And the two icons should be changed to show open lines.
In officecfg/registry/data/org/openoffice/Office/UI/GenericCommands.xcu Label: Polygon => Polyline Command: .uno:Polygon_Unfilled Tooltip: Polygon => Polyline Label: Polygon (45°) => Polyline (45°) Command: .uno:Polygon_Diagonal_Unfilled Tooltip: Polygon (45°) => Polyline (45°) Not to change Label: Polygon (45°), Filled Command: .uno:Polygon_Diagonal Tooltip: Polygon (45°), Filled Label: Polygon, Filled Command: .uno:Polygon Tooltip: Polygon, Filled Label: To Polygon Command: .uno:ChangePolygon Tooltip: To Polygon