Platform

Web

Steps to Reproduce

1. Navigate to https://appainter.dev/
2. Go to Advanced tab
3. Scroll down to Text Theme
4. Change Font Family to Montserrat
5. Export to file theme.json
6. Refresh https://appainter.dev/
7. Import from file theme.json
8. Scroll down to Text Theme
9. Notice Font Family is incorrect

Expected behaviour

Changed font family to import from an export

Actual behaviour

After import, font remains Roboto

Flutter doctor output

No response

Additional Context

No response