The style button, available in physical mode, pops up a menu of options for the presentation style of wires. The Wire Width choice sets the default width if no wires are selected, or changes the width of selected wires. If there are wires selected, Xic prompts for a new wire width for the selected wires, and the selected wires will have their widths altered. The new width should not be less than the minimum width (MinWidth design rule) for the layers.
If there are no applicable wires selected, the default wire width for the current layer is set, which is constrained to be greater or equal to the minimum width. Wires subsequently created on the present layer will have the new width.
The other choices set the default end style if no applicable wire is selected, or changes selected wires to the chosen end style if wires are selected. All selections depend on layer-specific mode. In layer-specific mode, only selected wires on the current layer are changed. Otherwise, all selected wires are changed.
The possible end styles are flush ends, extended rounded ends, and extended square ends. The extended styles project the length of the wire by half of the width beyond the terminating vertex. The button icon changes to indicate the present wire end style with a small dot.