Ref statements

^Syntax
RefStatement :
      Properties ? Expression<true> ;

Ref statements can be used to display expressions without any side effects.

Properties of refs

If provided a non-zero weight property, a ref statement generates a bias rule. Bias rules are rules that are always true. They can be used to artificially make certain adjustables more stable. Beyond that, any display properties defined on them are treated like properties of the ref-ed expression.