I think I have the code for the select tag finished, but I haven't yet implemented any or none.

src/renderer/select_context.rs

@@ -2,8 +2,8 @@ use crate::renderer::parameters_context::ParametersContext;
 
 #[derive(Debug)]
 pub struct SelectContext<'a> {
-    select_parameters: &'a ParametersContext<'a>,
-    were_any_true: bool,
+    pub select_parameters: &'a ParametersContext<'a>,
+    pub were_any_true: bool,
 }
 
 impl<'a> SelectContext<'a> {