X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=src%2Fdygraph.js;h=bc75fefcb772520ecaff1fdfda394ec3c6419056;hb=77ad1333ba9d129938e6d03c063ada46ad1f98ab;hp=d166f0311177960e76635b9a7f3808d8f8534fb8;hpb=8aed933d0737d6091530a36f28b10a45866d5b2e;p=dygraphs.git

diff --git a/src/dygraph.js b/src/dygraph.js
index d166f03..bc75fef 100644
--- a/src/dygraph.js
+++ b/src/dygraph.js
@@ -1774,6 +1774,8 @@ Dygraph.prototype.updateSelection_ = function(opt_animFraction) {
   if (this.getOption('highlightSeriesOpts')) {
     ctx.clearRect(0, 0, this.width_, this.height_);
     var alpha = 1.0 - this.getNumericOption('highlightSeriesBackgroundAlpha');
+    var backgroundColor = utils.toRGB_(this.getOption('highlightSeriesBackgroundColor'));
+
     if (alpha) {
       // Activating background fade includes an animation effect for a gradual
       // fade. TODO(klausw): make this independently configurable if it causes
@@ -1787,7 +1789,7 @@ Dygraph.prototype.updateSelection_ = function(opt_animFraction) {
         }
         alpha *= opt_animFraction;
       }
-      ctx.fillStyle = 'rgba(255,255,255,' + alpha + ')';
+      ctx.fillStyle = 'rgba(' + backgroundColor.r + ',' + backgroundColor.g + ',' + backgroundColor.b + ',' + alpha + ')';
       ctx.fillRect(0, 0, this.width_, this.height_);
     }