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It is a good practice to add an icon to a model. The icon shows up in the Projects browser (Library trees) and in the Diagram View.

Open the Icon Editor🔗

  1. Right-click on a model in the Projects browser
  2. Click on "Edit Icon" to open the Icon Editor

Add an icon🔗

There are two ways to add an icon to a model/class:

  1. Create an icon by using the built-in graphical primitives
  2. Use an existing image (PNG, JPG, BMP (not recommended, due to large memory), or SVG (displayed like PNG))

Create an icon by using the drawing tools🔗

Using the drawing tools you can be creative and use graphical primitives like rectangles, ellipses, texts, lines and polygons.


  • Small memory footprint
  • Icon can be scaled up and down without any loss of the image quality (cf. vector graphics)
  • Self-contained: All the information is stored in the model/class

Use an existing image🔗

An alternative to drawing your icon is to use an existing image. To add an image:

  1. Choose the "Draw Bitmap" tool and pick an image from the image gallery
  2. Or drag an image directly into the Icon Editor (doing so automatically uploads the image into the Resources folder of the corresponding library)


  • Quick way to add an icon


  • Larger memory footprint and the icon can lose quality when scaled up and down
  • The image is stored outside the model