-GType _gtk_css_style_property_get_computed_type (GtkCssStyleProperty *property);
-GType _gtk_css_style_property_get_specified_type (GtkCssStyleProperty *property);
-gboolean _gtk_css_style_property_is_specified_type (GtkCssStyleProperty *property,
- GType type);
-
-void _gtk_css_style_property_compute_value (GtkCssStyleProperty *property,
- GValue *computed,
- GtkStyleContext *context,
- const GValue *specified);