2b0605543d897a5fb6a6139f6a107742daeb3e67
braney
  Sat May 26 17:01:37 2012 -0700
add ability to highlight linkedFeatures with a colored box around the existing boxes.  Will be used by Mark to highlight Gencode genes that satisfy filtering requirements.
diff --git src/hg/hgTracks/hgTracks.h src/hg/hgTracks/hgTracks.h
index d8f98b0..6503aee 100644
--- src/hg/hgTracks/hgTracks.h
+++ src/hg/hgTracks/hgTracks.h
@@ -298,30 +298,31 @@
     {
     struct linkedFeatures *next;
     int start, end;			/* Start/end in browser coordinates. */
     int tallStart, tallEnd;		/* Start/end of fat display. */
     int grayIx;				/* Average of components. */
     int filterColor;			/* Filter color (-1 for none) */
     float score;                        /* score for this feature */
     char *name;				/* Accession of query seq. */
     int orientation;                    /* Orientation. */
     struct simpleFeature *components;   /* List of component simple features. */
     struct simpleFeature *codons;       /* If zoomed to CDS or codon level.*/
     void *extra;			/* Extra info that varies with type. */
     void *original;			/* The structure that was converted
 					   into this (when needed later).  */
     struct itemAttr *itemAttr;          /* itemAttr object for this lf, or NULL */
+    int highlightColor;                 /* highlight color,0 if no highlight */
     };
 
 struct linkedFeaturesSeries
 /* series of linked features that are comprised of multiple linked features */
 {
     struct linkedFeaturesSeries *next;
     char *name;                      /* name for series of linked features */
     int start, end;                     /* Start/end in browser coordinates. */
     int orientation;                    /* Orientation. */
     int grayIx;				/* Gray index (average of features) */
     boolean noLine;                     /* if true don't draw line connecting features */
     struct linkedFeatures *features;    /* linked features for a series */
 };
 
 struct knownGenesExtra