Styling and Theming
Create consistent, professional diagrams with custom colours and project-wide themes. Learn how to style individual elements and apply themes across your workspace.
Consistent styling makes diagrams easier to read and gives them a professional appearance. The editor offers element-level styling and project-wide theming to help you create cohesive diagrams.
Element Styling
Each shape and connector can be individually styled through the properties panel.
Shape Colours
Border Properties
Connector Styling
Colour Coding
Use colour strategically to convey meaning:
Project Themes for Diagrams
For consistent styling across all diagrams in a workspace, configure default colours in the project settings.
Setting Up Project Defaults
What You Can Theme
The Diagram Theme tab supports default colours for:
Graph Diagram Colours
Graph diagrams use a different approach to theming. Instead of project-wide defaults, you style nodes directly:
Light and Dark Mode
NeoArc supports both light and dark colour schemes. When creating diagrams:
Accessibility Considerations
Design diagrams that work for all viewers:
Copying Styles
To apply one element's style to another: