Add virtual property TextMarkerTagType for SameWordHighLighterBase that can be overwritten in a subclass to use a different TextMarkerdefinition, so the colors of the TextMarkers can be changed in a subclass.

Defaults to the old value of "MarkerFormatDefinition/HighlightWordFormatDefinition"

Author: RobertvanderHulst

src/toolkit/Community.VisualStudio.Toolkit.Shared/MEF/SameWordHighlighterBase.cs

@@ -19,6 +19,11 @@ public class SameWordHighlighterBase : IViewTaggerProvider
 
         [Import] internal ITextStructureNavigatorSelectorService? _textStructureNavigatorSelector = null;
 
+        /// <summary>
+        /// Return the tag name for the HighlightWord tags. Defaults to "MarkerFormatDefinition/HighlightWordFormatDefinition".
+        /// Can be overwritten in a subclass to change the format of the tags.
+        /// </summary>
+        public virtual string TextMarkerTagType => "MarkerFormatDefinition/HighlightWordFormatDefinition";
         /// <summary>
         /// The Options that are used to find the matching words. The default implementation returns 
         /// FindOptions.WholeWord | FindOptions.MatchCase
@@ -50,7 +55,7 @@ public ITagger<T> CreateTagger<T>(ITextView textView, ITextBuffer buffer) where
 
     internal class HighlightWordTag : TextMarkerTag
     {
-        public HighlightWordTag() : base("MarkerFormatDefinition/HighlightWordFormatDefinition") { }
+        public HighlightWordTag(string tagName) : base(tagName) { }
     }
 
     internal class SameWordHighlighterTagger : ITagger<HighlightWordTag>, IDisposable
@@ -190,13 +195,13 @@ public IEnumerable<ITagSpan<HighlightWordTag>> GetTags(NormalizedSnapshotSpanCol
             // the duplication here is expected.
             if (spans.OverlapsWith(new NormalizedSnapshotSpanCollection(currentWord)))
             {
-                yield return new TagSpan<HighlightWordTag>(currentWord, new HighlightWordTag());
+                yield return new TagSpan<HighlightWordTag>(currentWord, new HighlightWordTag(_tagger.TextMarkerTagType));
             }
 
             // Second, yield all the other words in the file
             foreach (SnapshotSpan span in NormalizedSnapshotSpanCollection.Overlap(spans, wordSpans))
             {
-                yield return new TagSpan<HighlightWordTag>(span, new HighlightWordTag());
+                yield return new TagSpan<HighlightWordTag>(span, new HighlightWordTag(_tagger.TextMarkerTagType));
             }
         }