Describe the bug
The theme builder is not producing overridden view properly because it does not default things correctly. The theme builder needs to start by getting the current values from the existing theme, even if that is the default one. This will not affect the new themes that use themebuilder as they are building from scratch, this only affects use after the theme has been configured.
Confirm that the bug is in the embedded library
Yes
To Reproduce
Create a card layout theme with a few items
Expected behavior
Icons and text should layout correctly