diff --git a/_example/dashboard.go b/_example/dashboard.go
index bd51c27..50dc94e 100644
--- a/_example/dashboard.go
+++ b/_example/dashboard.go
@@ -6,8 +6,11 @@
 
 package main
 
-import ui "github.com/gizak/termui"
-import "math"
+import (
+	"math"
+
+	ui "github.com/gizak/termui"
+)
 
 func main() {
 	if err := ui.Init(); err != nil {
@@ -82,13 +85,13 @@ func main() {
 
 	lc := ui.NewLineChart()
 	lc.BorderLabel = "dot-mode Line Chart"
-	lc.Data = sinps
+	lc.Data["default"] = sinps
 	lc.Width = 50
 	lc.Height = 11
 	lc.X = 0
 	lc.Y = 14
 	lc.AxesColor = ui.ColorWhite
-	lc.LineColor = ui.ColorRed | ui.AttrBold
+	lc.LineColor["default"] = ui.ColorRed | ui.AttrBold
 	lc.Mode = "dot"
 
 	bc := ui.NewBarChart()
@@ -105,13 +108,13 @@ func main() {
 
 	lc1 := ui.NewLineChart()
 	lc1.BorderLabel = "braille-mode Line Chart"
-	lc1.Data = sinps
+	lc1.Data["default"] = sinps
 	lc1.Width = 26
 	lc1.Height = 11
 	lc1.X = 51
 	lc1.Y = 14
 	lc1.AxesColor = ui.ColorWhite
-	lc1.LineColor = ui.ColorYellow | ui.AttrBold
+	lc1.LineColor["default"] = ui.ColorYellow | ui.AttrBold
 
 	p1 := ui.NewPar("Hey!\nI am a borderless block!")
 	p1.Border = false
@@ -126,8 +129,8 @@ func main() {
 		list.Items = strs[t%9:]
 		sp.Lines[0].Data = spdata[:30+t%50]
 		sp.Lines[1].Data = spdata[:35+t%50]
-		lc.Data = sinps[t/2%220:]
-		lc1.Data = sinps[2*t%220:]
+		lc.Data["default"] = sinps[t/2%220:]
+		lc1.Data["default"] = sinps[2*t%220:]
 		bc.Data = bcdata[t/2%10:]
 		ui.Render(p, list, g, sp, lc, bc, lc1, p1)
 	}
diff --git a/_example/grid.go b/_example/grid.go
index 4128909..5387f13 100644
--- a/_example/grid.go
+++ b/_example/grid.go
@@ -6,9 +6,11 @@
 
 package main
 
-import ui "github.com/gizak/termui"
+import (
+	"math"
 
-import "math"
+	ui "github.com/gizak/termui"
+)
 
 func main() {
 	if err := ui.Init(); err != nil {
@@ -45,10 +47,10 @@ func main() {
 
 	lc := ui.NewLineChart()
 	lc.BorderLabel = "braille-mode Line Chart"
-	lc.Data = sinps
+	lc.Data["default"] = sinps
 	lc.Height = 11
 	lc.AxesColor = ui.ColorWhite
-	lc.LineColor = ui.ColorYellow | ui.AttrBold
+	lc.LineColor["default"] = ui.ColorYellow | ui.AttrBold
 
 	gs := make([]*ui.Gauge, 3)
 	for i := range gs {
@@ -107,7 +109,7 @@ func main() {
 		}
 
 		sp.Lines[0].Data = spdata[:100+i]
-		lc.Data = sinps[2*i:]
+		lc.Data["default"] = sinps[2*i:]
 		ui.Render(ui.Body)
 	})
 
diff --git a/_example/linechart.png b/_example/linechart.png
index 24f3c97..b0d0057 100644
Binary files a/_example/linechart.png and b/_example/linechart.png differ
diff --git a/_example/theme.go b/_example/theme.go
index aee6789..ae0ba48 100644
--- a/_example/theme.go
+++ b/_example/theme.go
@@ -6,8 +6,11 @@
 
 package main
 
-import ui "github.com/gizak/termui"
-import "math"
+import (
+	"math"
+
+	ui "github.com/gizak/termui"
+)
 
 func main() {
 	err := ui.Init()
@@ -76,7 +79,7 @@ func main() {
 	})()
 
 	lc.BorderLabel = "Line Chart"
-	lc.Data = sinps
+	lc.Data["default"] = sinps
 	lc.Width = 50
 	lc.Height = 11
 	lc.X = 0
@@ -108,7 +111,7 @@ func main() {
 		}
 		return d
 	})()
-	lc1.Data = rndwalk
+	lc1.Data["default"] = rndwalk
 	lc1.Width = 26
 	lc1.Height = 11
 	lc1.X = 51
@@ -126,8 +129,8 @@ func main() {
 		list.Items = strs[t%9:]
 		sp.Lines[0].Data = spdata[t%10:]
 		sp.Lines[1].Data = spdata[t/2%10:]
-		lc.Data = sinps[t/2:]
-		lc1.Data = rndwalk[t:]
+		lc.Data["default"] = sinps[t/2:]
+		lc1.Data["default"] = rndwalk[t:]
 		bc.Data = bcdata[t/2%10:]
 		ui.Render(p, list, g, sp, lc, bc, lc1, p1)
 	}