Fix some Doxygen docstrings

modules/juce_animation/animation/juce_Easings.h

@@ -36,7 +36,10 @@ namespace juce
 {
 
 //==============================================================================
-/** A selection of options available for customising a spring style easing function. */
+/** A selection of options available for customising a spring style easing function.
+
+    @tags{Animations}
+*/
 class SpringEasingOptions
 {
 public:

modules/juce_core/misc/juce_OptionsHelpers.h

@@ -32,6 +32,10 @@
   ==============================================================================
 */
 
+/** A base class for building Options.
+
+    @tags{Core}
+*/
 template <typename OptionsType>
 class OptionsBuilder
 {

modules/juce_graphics/fonts/juce_FunctionPointerDestructor.h

@@ -32,6 +32,8 @@
   ==============================================================================
 */
 
+#ifndef DOXYGEN
+
 namespace juce
 {
 
@@ -47,3 +49,5 @@ struct FunctionPointerDestructor
 };
 
 } // namespace juce
+
+#endif

modules/juce_graphics/fonts/juce_LruCache.h

@@ -32,6 +32,8 @@
   ==============================================================================
 */
 
+#ifndef DOXYGEN
+
 namespace juce
 {
 
@@ -82,3 +84,5 @@ private:
 };
 
 } // namespace juce
+
+#endif

modules/juce_graphics/fonts/juce_Typeface.h

@@ -37,6 +37,8 @@ namespace juce
 
 /** A single path-based layer of a colour glyph. Contains the glyph shape and the colour in which
     the shape should be painted.
+
+    @tags{Graphics}
 */
 struct ColourLayer
 {
@@ -45,6 +47,8 @@ struct ColourLayer
 };
 
 /** A bitmap representing (part of) a glyph, most commonly used to represent colour emoji glyphs.
+
+    @tags{Graphics}
 */
 struct ImageLayer
 {
@@ -53,6 +57,8 @@ struct ImageLayer
 };
 
 /** A single layer that makes up part of a glyph image.
+
+    @tags{Graphics}
 */
 struct GlyphLayer
 {
@@ -85,6 +91,8 @@ enum class TypefaceMetricsKind
 };
 
 /** Font metrics using JUCE conventions.
+
+    @tags{Graphics}
 */
 struct TypefaceMetrics
 {
@@ -280,6 +288,7 @@ public:
         const auto isMonochrome   = typeface->getColourGlyphFormats() == 0;
         const auto isSvg          = (typeface->getColourGlyphFormats() & Typeface::colourGlyphFormatSvg) != 0;
         const auto isSimpleColour = (typeface->getColourGlyphFormats() & (Typeface::colourGlyphFormatBitmap | Typeface::colourGlyphFormatCOLRv0)) != 0;
+        @endcode
     */
     int getColourGlyphFormats() const;
 

modules/juce_graphics/fonts/juce_TypefaceFileCache.h

@@ -32,6 +32,8 @@
   ==============================================================================
 */
 
+#ifndef DOXYGEN
+
 namespace juce
 {
 
@@ -68,3 +70,5 @@ private:
 JUCE_IMPLEMENT_SINGLETON (TypefaceFileCache)
 
 } // namespace juce
+
+#endif

modules/juce_gui_basics/widgets/juce_Slider.h

@@ -42,6 +42,8 @@ namespace juce
 
     @see Slider::addListener, Slider::removeListener, WebSliderRelay::addListener,
          WebSliderRelay::removeListener
+
+     @tags{GUI}
 */
 template <typename Emitter>
 class JUCE_API  SliderListener

modules/juce_gui_extra/misc/juce_WebBrowserComponent.h

@@ -482,8 +482,10 @@ public:
     class EvaluationResult
     {
     public:
+        /** A simple error type class. */
         struct Error
         {
+            /** Error type. */
             enum class Type
             {
                 /** Error occurring for a reason unknown to us. */

modules/juce_gui_extra/misc/juce_WebControlParameterIndexReceiver.h

@@ -46,6 +46,8 @@ namespace juce
     In your frontend code you can use the ControlParameterIndexUpdater class, that emits
     controlParameterIndexChanged events based on the mouse movement, and control parameter index
     annotations attached to DOM elements.
+
+    @tags{GUI}
 */
 class JUCE_API  WebControlParameterIndexReceiver : public OptionsBuilder<WebBrowserComponent::Options>
 {

modules/juce_gui_extra/misc/juce_WebControlRelays.h

@@ -59,6 +59,8 @@ namespace juce
     @endcode
 
     @see WebSliderParameterAttachment
+
+    @tags{GUI}
 */
 class JUCE_API  WebSliderRelay : public OptionsBuilder<WebBrowserComponent::Options>
 {
@@ -129,6 +131,8 @@ private:
     @endcode
 
     @see WebToggleButtonParameterAttachment
+
+    @tags{GUI}
 */
 class JUCE_API  WebToggleButtonRelay  : public OptionsBuilder<WebBrowserComponent::Options>
 {
@@ -197,6 +201,8 @@ private:
     @endcode
 
     @see WebComboBoxParameterAttachment
+
+    @tags{GUI}
 */
 class JUCE_API  WebComboBoxRelay  : public OptionsBuilder<WebBrowserComponent::Options>
 {