In Portrait, you can apply your own design (color and graphics) - this is done inside the Theme configuration of the App. You can customize:

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See General settings for further details on how to set up the Theme.You can change the logo and hero of the app to your needs:

Logo

The logo is shown on top of the menu and can be a JPG, PNG or SVG file.
We recommend to use using the following SVG template:

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The hero is shown on the dashboard and can either be a JPG, PNG or SVG file. We strongly recommend to use a using an SVG file.