finished documenting effect field headers

effects/fields/labelfield.h

@@ -3,14 +3,32 @@
 
 #include "../effectfield.h"
 
+/**
+ * @brief The LabelField class
+ *
+ * A UI-type EffectField. This field is largely an EffectField wrapper around a QLabel and provides no data that's
+ * usable in the Effect. It's primarily useful for showing UI information. This field is not exposed to the external
+ * shader API as it requires raw C++ code to connect it to other elements.
+ */
 class LabelField : public EffectField
 {
   Q_OBJECT
 public:
+  /**
+   * @brief Reimplementation of EffectField::EffectField().
+   */
   LabelField(EffectRow* parent, const QString& string);
 
+  /**
+   * @brief Reimplementation of EffectField::CreateWidget()
+   *
+   * Creates and connects to a QLabel.
+   */
   virtual QWidget* CreateWidget(QWidget *existing = nullptr) override;
 private:
+  /**
+   * @brief Internal text string
+   */
   QString label_text_;
 };