You can customize the following diagram-level connector properties. These settings apply to all connectors of all types within the diagram and cannot be overridden at the connector level.
If you select Show Connectors Over Blocks, any connectors that cross blocks will be shown over (i.e., in front of) those blocks. Otherwise, the blocks will be displayed on top.
Where connectors attach to blocks if the blocks are not in direct horizontal or vertical alignment. If the Automatic Connection Preference field is set to Left-Right, the connector will attach to the sides of the blocks; if it is set to Top-Bottom, the connector will attach to the top and bottom of the blocks. If No Preference is chosen, the connector will attach to the closest edges.
The colors used for:
All connector handles and selected connectors.
Connectors to/from highlighted blocks (i.e., blocks that are part of a multiple selection).
Connectors leading to or from a selected block. This can be helpful in visualizing how a block is connected within a complex diagram.
The size of the arrow head, in inches.
The thickness of connectors in a traced path.