9e9fdcd37b60aa4186eeea2b2c61df277dbfeb5a
kate
  Thu Oct 22 15:48:16 2020 -0700
Add multi-region button to position line and lighten highlights on alternating regions. Part of improving multi-region features for sparse track use. refs #26385

diff --git src/hg/hgTracks/hgTracks.h src/hg/hgTracks/hgTracks.h
index 271b915..6989c6a 100644
--- src/hg/hgTracks/hgTracks.h
+++ src/hg/hgTracks/hgTracks.h
@@ -557,30 +557,31 @@
 extern int rulerMode;         /* on, off, full */
 extern boolean withLeftLabels;		/* Display left labels? */
 extern boolean withCenterLabels;	/* Display center labels? */
 extern boolean withPriorityOverride;    /* enable track reordering? */
 extern boolean revCmplDisp;             /* reverse-complement display */
 extern boolean measureTiming;	/* Flip this on to display timing
                                  * stats on each track at bottom of page. */
 
 extern struct hash *hgFindMatches; /* The matches found by hgFind that should be highlighted. */
 
 extern int maxShade;		  /* Highest shade in a color gradient. */
 extern Color shadesOfGray[10+1];  /* 10 shades of gray from white to black
                                    * Red is put at end to alert overflow. */
 extern Color shadesOfBrown[10+1]; /* 10 shades of brown from tan to tar. */
 extern struct rgbColor guidelineColor;
+extern struct rgbColor lightGuidelineColor;
 extern struct rgbColor undefinedYellowColor;
 extern Color darkGreenColor;
 
 extern Color shadesOfSea[10+1];       /* Ten sea shades. */
 
 /* 16 shades from black to fully saturated of red/green/blue for
  * expression data. */
 #define EXPR_DATA_SHADES 16
 extern Color shadesOfGreen[EXPR_DATA_SHADES];
 extern Color shadesOfRed[EXPR_DATA_SHADES];
 extern Color shadesOfBlue[EXPR_DATA_SHADES];
 extern Color shadesOfYellow[EXPR_DATA_SHADES];
 
 extern Color shadesOfGreenOnWhite[EXPR_DATA_SHADES];
 extern Color shadesOfRedOnWhite[EXPR_DATA_SHADES];