diff --git a/server-core/src/main/java/io/onedev/server/buildspec/job/DefaultJobManager.java b/server-core/src/main/java/io/onedev/server/buildspec/job/DefaultJobManager.java
index 4a11c18399..d30925827b 100644
--- a/server-core/src/main/java/io/onedev/server/buildspec/job/DefaultJobManager.java
+++ b/server-core/src/main/java/io/onedev/server/buildspec/job/DefaultJobManager.java
@@ -1258,10 +1258,14 @@ public class DefaultJobManager implements JobManager, Runnable, CodePullAuthoriz
 							VariableInterpolator interpolator = new VariableInterpolator(build, build.getParamCombination());
 							Map<String, String> placeholderValues = new HashMap<>();
 							placeholderValues.put(BUILD_VERSION, build.getVersion());
-							for (PostBuildAction action: build.getJob().getPostBuildActions()) {
-								action = interpolator.interpolateProperties(action); 
-								if (ActionCondition.parse(build.getJob(), action.getCondition()).matches(build))
-									action.execute(build);
+							if (build.getJob() != null) {
+								for (PostBuildAction action: build.getJob().getPostBuildActions()) {
+									action = interpolator.interpolateProperties(action); 
+									if (ActionCondition.parse(build.getJob(), action.getCondition()).matches(build))
+										action.execute(build);
+								}
+							} else {
+								throw new ExplicitException("Job not found");
 							}
 						} catch (Throwable e) {
 							String message = String.format("Error processing post build actions (project: %s, commit: %s, job: %s)", 
diff --git a/server-core/src/main/java/io/onedev/server/web/asset/bootstrap/css/bootstrap-custom.css b/server-core/src/main/java/io/onedev/server/web/asset/bootstrap/css/bootstrap-custom.css
index 6588933e0e..cc0c8e2a3e 100644
--- a/server-core/src/main/java/io/onedev/server/web/asset/bootstrap/css/bootstrap-custom.css
+++ b/server-core/src/main/java/io/onedev/server/web/asset/bootstrap/css/bootstrap-custom.css
@@ -2591,8 +2591,8 @@ h6, .h6 {
     box-shadow: 0px 0px 8px 2px rgba(0,0,0,0.1);
 }
 .dark-mode .popover {
-    background-color: var(--dark-mode-dark);
-    border-color: var(--dark-mode-dark);
+    background-color: var(--dark-mode-light-dark);
+    border-color: var(--dark-mode-lighter-dark);
 	box-shadow: 0 0 30px rgb(0 0 0 / 50%);	
 }
 .bs-popover-auto[x-placement^=right]>.arrow::before, .bs-popover-right>.arrow::before {
@@ -2609,28 +2609,28 @@ h6, .h6 {
 }
 
 .dark-mode .bs-popover-auto[x-placement^=right]>.arrow::before, .dark-mode .bs-popover-right>.arrow::before {
-    border-right-color: var(--dark-mode-dark); 
+    border-right-color: var(--dark-mode-lighter-dark); 
 }
 .dark-mode .bs-popover-auto[x-placement^=left]>.arrow::before, .dark-mode .bs-popover-left>.arrow::before {
-    border-left-color: var(--dark-mode-dark);
+    border-left-color: var(--dark-mode-lighter-dark);
 }
 .dark-mode .bs-popover-auto[x-placement^=top]>.arrow::before, .dark-mode .bs-popover-top>.arrow::before {
-    border-top-color: var(--dark-mode-dark);
+    border-top-color: var(--dark-mode-lighter-dark);
 }
 .dark-mode .bs-popover-auto[x-placement^=bottom]>.arrow::before, .dark-mode .bs-popover-bottom>.arrow::before {
-    border-bottom-color: var(--dark-mode-dark);
+    border-bottom-color: var(--dark-mode-lighter-dark);
 }
 .dark-mode .bs-popover-auto[x-placement^=right]>.arrow::after, .dark-mode .bs-popover-right>.arrow::after {
-    border-right-color: var(--dark-mode-dark); 
+    border-right-color: var(--dark-mode-lighter-dark); 
 }
 .dark-mode .bs-popover-auto[x-placement^=left]>.arrow::after, .dark-mode .bs-popover-left>.arrow::after {
-    border-left-color: var(--dark-mode-dark);
+    border-left-color: var(--dark-mode-lighter-dark);
 }
 .dark-mode .bs-popover-auto[x-placement^=top]>.arrow::after, .dark-mode .bs-popover-top>.arrow::after {
-    border-top-color: var(--dark-mode-dark);
+    border-top-color: var(--dark-mode-lighter-dark);
 }
 .dark-mode .bs-popover-auto[x-placement^=bottom]>.arrow::after, .dark-mode .bs-popover-bottom>.arrow::after {
-    border-bottom-color: var(--dark-mode-dark);
+    border-bottom-color: var(--dark-mode-lighter-dark);
 }
 
 .popover-header {
@@ -2643,7 +2643,7 @@ h6, .h6 {
 }
 .dark-mode .popover-header {
     color: var(--light);
-    background-color: var(--dark-mode-dark);
+    background-color: var(--dark-mode-light-dark);
     border-bottom-color: var(--dark-mode-lighter-dark);
 }
 .popover-body {
diff --git a/server-core/src/main/java/io/onedev/server/web/component/chart/line/LineChartPanel.java b/server-core/src/main/java/io/onedev/server/web/component/chart/line/LineChartPanel.java
index 5f6365c7b7..f38deb4894 100644
--- a/server-core/src/main/java/io/onedev/server/web/component/chart/line/LineChartPanel.java
+++ b/server-core/src/main/java/io/onedev/server/web/component/chart/line/LineChartPanel.java
@@ -12,6 +12,7 @@ import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 import io.onedev.server.OneDev;
+import io.onedev.server.web.page.base.BasePage;
 
 @SuppressWarnings("serial")
 public class LineChartPanel extends GenericPanel<LineSeries> {
@@ -33,9 +34,10 @@ public class LineChartPanel extends GenericPanel<LineSeries> {
 		
 		try {
 			ObjectMapper mapper = OneDev.getInstance(ObjectMapper.class);
-			String script = String.format("onedev.server.lineChart.onDomReady('%s', %s, %s);", 
+			BasePage page = (BasePage) getPage();
+			String script = String.format("onedev.server.lineChart.onDomReady('%s', %s, %s, %b);", 
 					getMarkupId(true), mapper.writeValueAsString(getSeries()), 
-					getSeries().getYAxisValueFormatter());
+					getSeries().getYAxisValueFormatter(), page.isDarkMode());
 			response.render(OnDomReadyHeaderItem.forScript(script));
 		} catch (JsonProcessingException e) {
 			throw new RuntimeException(e);
diff --git a/server-core/src/main/java/io/onedev/server/web/component/chart/line/line-chart.js b/server-core/src/main/java/io/onedev/server/web/component/chart/line/line-chart.js
index 8c791e23f9..15b42841c8 100644
--- a/server-core/src/main/java/io/onedev/server/web/component/chart/line/line-chart.js
+++ b/server-core/src/main/java/io/onedev/server/web/component/chart/line/line-chart.js
@@ -1,5 +1,5 @@
 onedev.server.lineChart = {
-	onDomReady: function(containerId, lineSeries, yAxisValueFormatter) {
+	onDomReady: function(containerId, lineSeries, yAxisValueFormatter, darkMode) {
 		var $chart = $("#" + containerId + ">.line-chart");
 		
 		if (lineSeries) {
@@ -7,14 +7,25 @@ onedev.server.lineChart = {
 			option = {
 				xAxis: {
 					type: 'category',
-					data: []
+					data: [],
+					axisLabel: {
+						color: darkMode?'#cdcdde':'#3F4254'
+					}
 				},
 			    yAxis: {
 			        type: 'value',
 					minInterval: 1,
+			        splitLine: {
+			            lineStyle: {
+			                color: darkMode?'#535370':'#E4E6EF'
+			            }
+			        },			    	
 			    	axisLine: {
 			    		show:false
 			    	},	
+			    	axisLabel: {
+						color: darkMode?'#cdcdde':'#3F4254'
+			    	},
 			    },
 				tooltip: {
 					trigger: 'axis' 
@@ -25,7 +36,10 @@ onedev.server.lineChart = {
 				option.legend = {
 					show: true, 
 					x: "center",
-					data: []
+					data: [],
+					textStyle: {
+						color: darkMode?'#cdcdde':'#3F4254'
+					}
 				}
 				for (const i in lineSeries.lines) 
 					option.legend.data.push(lineSeries.lines[i].name);
@@ -35,7 +49,10 @@ onedev.server.lineChart = {
 					}
 					option.title = {
 						text: lineSeries.seriesName,
-						left: 'center'
+						left: 'center',
+						textStyle: {
+							color: darkMode?'#cdcdde':'#3F4254'
+						}
 					}
 					option.legend.top = 30;
 				} 
@@ -45,7 +62,10 @@ onedev.server.lineChart = {
 					title = lineSeries.seriesName + " / " + title;
 				option.title = {
 					text: title,
-					left: 'center'
+					left: 'center',
+					textStyle: {
+						color: darkMode?'#cdcdde':'#3F4254'
+					}
 				}
 			} 
 			
diff --git a/server-core/src/main/java/io/onedev/server/web/component/chart/pie/PieChartPanel.java b/server-core/src/main/java/io/onedev/server/web/component/chart/pie/PieChartPanel.java
index 375f5e97bd..dfe7db7b62 100644
--- a/server-core/src/main/java/io/onedev/server/web/component/chart/pie/PieChartPanel.java
+++ b/server-core/src/main/java/io/onedev/server/web/component/chart/pie/PieChartPanel.java
@@ -18,6 +18,7 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 
 import io.onedev.server.OneDev;
 import io.onedev.server.web.behavior.AbstractPostAjaxBehavior;
+import io.onedev.server.web.page.base.BasePage;
 
 @SuppressWarnings("serial")
 public abstract class PieChartPanel extends GenericPanel<List<PieSlice>> {
@@ -63,10 +64,11 @@ public abstract class PieChartPanel extends GenericPanel<List<PieSlice>> {
 			throw new RuntimeException(e);
 		}
 		
+		BasePage page = (BasePage) getPage();
 		CallbackParameter param = CallbackParameter.explicit("sliceName");
 		String callback = selectionBehavior.getCallbackFunction(param).toString();
-		String script = String.format("onedev.server.pieChart.onDomReady('%s', %s, %s);", 
-				getMarkupId(true), jsonOfSlices, callback);
+		String script = String.format("onedev.server.pieChart.onDomReady('%s', %s, %s, %b);", 
+				getMarkupId(true), jsonOfSlices, callback, page.isDarkMode());
 		response.render(OnDomReadyHeaderItem.forScript(script));
 	}
 	
diff --git a/server-core/src/main/java/io/onedev/server/web/component/chart/pie/pie-chart.js b/server-core/src/main/java/io/onedev/server/web/component/chart/pie/pie-chart.js
index 5a31f3cf0b..45e75d7b62 100644
--- a/server-core/src/main/java/io/onedev/server/web/component/chart/pie/pie-chart.js
+++ b/server-core/src/main/java/io/onedev/server/web/component/chart/pie/pie-chart.js
@@ -1,5 +1,5 @@
 onedev.server.pieChart = {
-	onDomReady: function(containerId, pieSlices, selectionCallback) {
+	onDomReady: function(containerId, pieSlices, selectionCallback, darkMode) {
 		var $chart = $("#" + containerId + ">.pie-chart");
 		if (pieSlices) {
 			var chart = echarts.init($chart[0]);
@@ -35,6 +35,9 @@ onedev.server.pieChart = {
 			            }
 			            return `${name}  ${value}`;
 			        },
+					textStyle: {
+						color: darkMode?'#cdcdde':'#3F4254'
+					}
 				},
 				series: [{
 					type: "pie",
diff --git a/server-core/src/main/java/io/onedev/server/web/page/project/issues/milestones/MilestoneBurndownPage.java b/server-core/src/main/java/io/onedev/server/web/page/project/issues/milestones/MilestoneBurndownPage.java
index 49c1439a54..df10c6f869 100644
--- a/server-core/src/main/java/io/onedev/server/web/page/project/issues/milestones/MilestoneBurndownPage.java
+++ b/server-core/src/main/java/io/onedev/server/web/page/project/issues/milestones/MilestoneBurndownPage.java
@@ -231,7 +231,9 @@ public class MilestoneBurndownPage extends MilestoneDetailPage {
 						guidelineYAxisValues.put(xAxisValues.get(0), initialIssueWeight);
 						guidelineYAxisValues.put(xAxisValues.get(xAxisValues.size()-1), 0);
 					}
-					lines.add(new Line("Guide Line", guidelineYAxisValues, "black", null, "dashed"));
+					
+					String color = isDarkMode()?"white":"black";
+					lines.add(new Line("Guide Line", guidelineYAxisValues, color, null, "dashed"));
 					
 					String yAxisValueFormatter;
 					if (field != null && getIssueSetting().getFieldSpec(field) instanceof WorkingPeriodField) {