UI: minor fixes/improvements.

@@ -277,6 +277,7 @@ export default class Subscription {
             var datasource = this.datasources[i];
             for (var a = 0; a < datasource.dataKeys.length; a++) {
                 var dataKey = datasource.dataKeys[a];
+                dataKey.hidden = false;
                 dataKey.pattern = angular.copy(dataKey.label);
                 var datasourceData = {
                     datasource: datasource,
@@ -290,7 +291,6 @@ export default class Subscription {
                         dataKey: dataKey,
                         dataIndex: dataIndex++
                     };
-                    legendKey.dataKey.hidden = false;
                     this.legendData.keys.push(legendKey);
                     var legendKeyData = {
                         min: null,

@@ -437,11 +437,15 @@ function Utils($mdColorPalette, $rootScope, $window, $translate, $q, $timeout, t
             name: keyInfo.name,
             type: type,
             label: label,
-            color: genNextColor(datasources),
             funcBody: keyInfo.funcBody,
             settings: {},
             _hash: Math.random()
         }
+        if (keyInfo.color) {
+            dataKey.color = keyInfo.color;
+        } else {
+            dataKey.color = genNextColor(datasources);
+        }
         return dataKey;
     }
 

@@ -155,7 +155,7 @@ export default class TbFlot {
         var options = {
             title: null,
             subtitle: null,
-            shadowSize: settings.shadowSize || 4,
+            shadowSize: angular.isDefined(settings.shadowSize) ? settings.shadowSize : 4,
             HtmlText: false,
             grid: {
                 hoverable: true,
@@ -235,6 +235,12 @@ export default class TbFlot {
                 if (settings.grid.horizontalLines === false) {
                     this.yaxis.tickLength = 0;
                 }
+                if (angular.isDefined(settings.grid.margin)) {
+                    options.grid.margin = settings.grid.margin;
+                }
+                if (angular.isDefined(settings.grid.minBorderMargin)) {
+                    options.grid.minBorderMargin = settings.grid.minBorderMargin;
+                }
             }
 
             options.crosshair = {
@@ -327,6 +333,10 @@ export default class TbFlot {
                 show: this.chartType === 'line' ? keySettings.showLines !== false : keySettings.showLines === true
             };
 
+            if (angular.isDefined(keySettings.lineWidth)) {
+                series.lines.lineWidth = keySettings.lineWidth;
+            }
+
             series.points = {
                 show: false,
                 radius: 8
@@ -446,7 +456,7 @@ export default class TbFlot {
                                         hidden = hidden && yaxis.keysInfo[k].hidden;
                                     }
                                 }
-                                yaxis.hidden = hidden
+                                yaxis.hidden = hidden;
                                 var newIndex = -1;
                                 if (!yaxis.hidden) {
                                     this.options.yaxes.push(yaxis);