Library as design system dynamic value "unknown"

[Wojtek-G]

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Current Behavior

There is an issue with the constants used in the theme widget style of a library that serves as a design system - not working and show up as unknown.

Expected Behavior

Theme widget styles constants values that are set from the library (1st project) should be used in the 2nd project when theme widget styles applied from design system library.

Steps to Reproduce

1. Create a new project (1st project).
2. Create a constant "test1" double, value 24.
3. Add new container, set the border width as test1 constant.
4. Save the container style as new widget theme style "testtheme1".
5. Publish project as library.
6. Create a new project (2nd project), add 1st project as library dependency and design system.
7. Add new container to the 2nd project, set the widget style "testtheme1".
8. Check the border width - it says unknown and it's not working.

Reproducible from Blank

• The steps to reproduce above start from a blank project.

Bug Report Code (Required)

IT4gjMrlw4Z1rsRE7ZPud+9ajmYWJU9/U5c0sd4bGA0dCJzuPLMQdvXsSFhvOOalTWx2IESmmmYJpeiPuOGWC/o4B0ydQL5MyqhUVg7vWTile5OBC6WZdnx8Ed9QIH6f3KSvkAl7OutuZUJm7VyMI+uQThXdH7K3ImdISq/LZO4=

Visual documentation

Environment

- FlutterFlow version: FlutterFlow v5.3.5 released March 27, 2025
Flutter version is 3.27.3
- Platform: macOS
- Browser name and version: Chrome 134.0.6998.166 (arm64)
- Operating system and version affected: macOS 15.3.2 (24D81)

Additional Information

No response

[Alezanello]

Hi there!
Thanks for flagging this and for sharing the example project—it’s a big help in reproducing the issue!