Instead of styling every shape individually, you can style one, then apply that style to multiple selected shapes via the format panel.

1. Update the style of one of the shapes or connectors in your diagram. Note that shape and connector styles must be copied and pasted separately.
2. Select that shape or connector, in the Style tab of the format panel, click Copy Style.
3. Select the other shapes or connectors that you want to apply this style to. In the Style tab, click on Paste Style.

Tip: There are many shortcuts for working with styles in draw.io.

Related

• Change the styles of shapes
• See how to change the style of text labels and text shapes
• Change the style of connectors
• Reset the global default styles