After 2 years in development, a complete rewrite has taken place, and this has been launched on the AssetStore as FlexBuilder:

AssetStore: https://assetstore.unity.com/packages/tools/gui/flexbuilder-2023-245345

Website: https://flexbuilder.ninja

Main changes/updates:

  • Integrated with Unity Editor (live previews in Inspector)
  • Full support for Margins/Padding/complex layouts
  • Fixes for most of the bugs in Unity’s own Text components
  • Performance boosts to speed up Unity’s own TextMeshPro components
  • Intelligent self-fixing system – detects missing settings and gives you interactive help and automatic fix options