tested version with most of the final functionality. Still a few known issues, like dragging to a row that extends to multiple lines

card_preview.cs

@@ -55,7 +55,6 @@ public partial class card_preview : PanelContainer
 	{
 		PropogateCardId();
 		PropogateCardName();
-		GD.Print(Size);
 	}
 
 	// Called every frame. 'delta' is the elapsed time since the previous frame.