Small tweaks

src/app/controllers/row.js

@@ -107,7 +107,7 @@ function (angular, app, _) {
       var _as = 12 - $scope.dashboard.rowSpan($scope.row);
 
       $scope.panel = {
-        title: 'no title [click here]',
+        title: 'no title (click here)',
         error   : false,
         span    : _as < defaultSpan && _as > 0 ? _as : defaultSpan,
         editable: true,

src/app/panels/graph/module.html

@@ -4,7 +4,9 @@
 		<div class="graph-canvas-wrapper">
 
 			<div ng-if="datapointsWarning" class="datapoints-warning">
-				<span class="small" ng-show="!datapointsCount">No datapoints <tip>Can be caused by timezone mismatch between browser and graphite server</tip></span>
+				<span class="small" ng-show="!datapointsCount">
+					No datapoints <tip>No datapoints returned from metric query</tip>
+				</span>
 				<span class="small" ng-show="datapointsOutside">Datapoints outside time range <tip>Can be caused by timezone mismatch between browser and graphite server</tip></span>
 			</div>
 

src/css/less/grafana.less

@@ -439,8 +439,6 @@ select.grafana-target-segment-input {
   line-height: 14px;
 }
 
-
-
 .grafana-tooltip hr {
  padding: 2px;
  color: #c8c8c8;

src/css/less/variables.dark.less

@@ -277,7 +277,7 @@
 // Tooltips and popovers
 // -------------------------
 @tooltipColor:            #fff;
-@tooltipBackground:       @heroUnitBackground;
+@tooltipBackground:       rgb(58, 57, 57);
 @tooltipArrowWidth:       5px;
 @tooltipArrowColor:       @tooltipBackground;