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How to edit link styles

The Link Style Editor allows you to customize the visual style of links between nodes in your GNS3 project, including color, width, border type, and link type (Straight, Bezier, Flowchart, StateMachine, etc.).

Link Style Editor dialog

Opening the Editor

Right-click on a link between two connected nodes and select Edit style.

Right-click Edit style

Style Properties

PropertyDescription
Border ColorColor picker. Default: #800000 (maroon) for serial links, #000000 (black) for others
Border WidthNumeric input, range: 0–100
Border StyleSolid, dashed, dotted, etc.

Choose the link type that best suits your topology visualization needs.

TypeDescriptionUse Case
StraightDirect straight line between two pointsRegular network topology
BezierSmooth bezier curveVisually smooth links
FlowchartFlowchart-style connection (with rounded corners)Flowcharts, architecture diagrams
StateMachineState machine-style connection (adjustable curvature)State transition diagrams
FreeformFreeform path with drag controlCustom path visualization
Link type examples

Dynamic Parameters

ParameterApplicable TypesDescription
Bezier CurvatureBezier, StateMachineControls the curve bending degree
Flowchart Corner RadiusFlowchartControls the corner roundness