add `search.resultsInfoForeground`to docs (#6175)

api/references/images/theme-color/search-colors.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:601f04507ce944b1d06bbfcc9f890c64e5067672475aa0522cf79a7236d7647d
+size 27592

api/references/theme-color.md

@@ -350,6 +350,12 @@ Find colors depend on the current find string in the Find/Replace dialog.
 - `editor.findMatchHighlightBorder`: Border color of the other search matches.
 - `editor.findRangeHighlightBorder`: Border color the range limiting the search (Enable 'Find in Selection' in the find widget).
 
+Search colors are used in the search viewlet's global search results.
+
+![Search Results](images/theme-color/search-colors.png)
+
+- `search.resultsInfoForeground`: Color of the text in the search viewlet's completion message. For example, this color is used in the text that says "`{x} results in {y} files`".
+
 Search Editor colors highlight results in a Search Editor. This can be configured separately from other find matches in order to better differentiate between different classes of match in the same editor.
 
 ![Search Editor Matches](images/theme-color/searchEditorMatches.png)