Any chacne of getting wires in the material editor to reflect t he data type? Amplify Shader Editor in Unity did this by different wire colors, and also represented Vec2,3,4 with multiple lines to show more clearly where a data type mismatch could occur, or where you were assuming a conversion of the data type
Here is an image of it (low res)
https://imgs.search.brave.com/IQN9bY9w9hV2w9VPpFOblFNeLjL5EgXvPFdg_Ye59QU/rs:fit:860:0:0:0/g:ce/aHR0cHM6Ly93aWtp/LmFtcGxpZnkucHQv/aW1hZ2VzL3dwLWNv/bnRlbnQvdXBsb2Fk/cy8yMDE3LzAyL0Rl/YnVnTW9kZS5qcGc
Also, if you would have the grace in your heart, being able to show a Vec2/3 in the material UI as only a Vec2/3, instead of a Color haha would be amazing