diff --git a/block.go b/block.go
index 9531365..d7d78dd 100644
--- a/block.go
+++ b/block.go
@@ -140,3 +140,23 @@ func (d *Block) chopOverflow(ps []Point) []Point {
 	}
 	return nps
 }
+
+func (b Block) InnerWidth() int {
+	return b.innerWidth
+}
+
+func (b Block) InnerHeight() int {
+	return b.innerHeight
+}
+
+func (b Block) InnerX() int {
+	return b.innerX
+}
+
+func (b Block) InnerY() int {
+	return b.innerY
+}
+
+func (b *Block) Align() {
+	b.align()
+}
diff --git a/example/tabs.go b/example/tabs.go
index 14d57b7..5df2a77 100644
--- a/example/tabs.go
+++ b/example/tabs.go
@@ -1,15 +1,16 @@
 package main
 
 import (
-	"github.com/marigs/termui"
+	"github.com/gizak/termui"
+	"github.com/gizak/termui/extra"
 )
 
 func main() {
-    err := termui.Init()
-    if err != nil {
-	panic(err)
-    }
-    defer termui.Close()
+	err := termui.Init()
+	if err != nil {
+		panic(err)
+	}
+	defer termui.Close()
 
 	termui.UseTheme("helloworld")
 
@@ -19,7 +20,7 @@ func main() {
 	header.HasBorder = false
 	header.TextBgColor = termui.ColorBlue
 
-    tab1 := termui.NewTab("pierwszy")
+	tab1 := extra.NewTab("pierwszy")
 	par2 := termui.NewPar("Press q to quit\nPress j or k to switch tabs\n")
 	par2.Height = 5
 	par2.Width = 37
@@ -28,7 +29,7 @@ func main() {
 	par2.Border.FgColor = termui.ColorYellow
 	tab1.AddBlocks(par2)
 
-    tab2 := termui.NewTab("drugi")
+	tab2 := extra.NewTab("drugi")
 	bc := termui.NewBarChart()
 	data := []int{3, 2, 5, 3, 9, 5, 3, 2, 5, 8, 3, 2, 4, 5, 3, 2, 5, 7, 5, 3, 2, 6, 7, 4, 6, 3, 6, 7, 8, 3, 6, 4, 5, 3, 2, 4, 6, 4, 8, 5, 9, 4, 3, 6, 5, 3, 6}
 	bclabels := []string{"S0", "S1", "S2", "S3", "S4", "S5"}
@@ -42,24 +43,25 @@ func main() {
 	bc.NumColor = termui.ColorYellow
 	tab2.AddBlocks(bc)
 
-    tab3 := termui.NewTab("trzeci")
-    tab4 := termui.NewTab("żółw")
-    tab5 := termui.NewTab("four")
-    tab6 := termui.NewTab("five")
+	tab3 := extra.NewTab("trzeci")
+	tab4 := extra.NewTab("żółw")
+	tab5 := extra.NewTab("four")
+	tab6 := extra.NewTab("five")
 
-    tabpane := termui.NewTabpane()
+	tabpane := extra.NewTabpane()
 	tabpane.Y = 1
-    tabpane.Width = 30
-    tabpane.HasBorder = true
+	tabpane.Width = 30
+	tabpane.HasBorder = true
 
-    tabpane.SetTabs(*tab1, *tab2, *tab3, *tab4, *tab5, *tab6)
-
-    termui.Render(header, tabpane)
+	tabpane.SetTabs(*tab1, *tab2, *tab3, *tab4, *tab5, *tab6)
 
 	evt := termui.EventCh()
+
+	termui.Render(header, tabpane)
+
 	for {
 		select {
-		case e := <- evt:
+		case e := <-evt:
 			if e.Type == termui.EventKey {
 				switch e.Ch {
 				case 'q':
diff --git a/tabpane.go b/extra/tabpane.go
similarity index 66%
rename from tabpane.go
rename to extra/tabpane.go
index 7561bfe..dbfefe6 100644
--- a/tabpane.go
+++ b/extra/tabpane.go
@@ -1,51 +1,54 @@
-
-package termui
+package extra
 
 import (
 	"unicode/utf8"
+
+	. "github.com/gizak/termui"
 )
 
 type Tab struct {
-    Label   string
+	Label   string
 	RuneLen int
-    Blocks  []Bufferer
+	Blocks  []Bufferer
 }
 
 func NewTab(label string) *Tab {
-    return &Tab {
-                Label:  label,
-				RuneLen: utf8.RuneCount([]byte(label)) }
+	return &Tab{
+		Label:   label,
+		RuneLen: utf8.RuneCount([]byte(label))}
 }
 
 func (tab *Tab) AddBlocks(rs ...Bufferer) {
-    for _, r := range rs {
-        tab.Blocks = append(tab.Blocks, r)
-    }
+	for _, r := range rs {
+		tab.Blocks = append(tab.Blocks, r)
+	}
 }
 
 func (tab *Tab) Buffer() []Point {
-    points := []Point{}
-    for blockNum := 0; blockNum < len(tab.Blocks); blockNum++ {
-        b := &tab.Blocks[blockNum]
-        blockPoints := (*b).Buffer()
-        points = append(points, blockPoints...)
-    }
-    return points
+	points := []Point{}
+	for blockNum := 0; blockNum < len(tab.Blocks); blockNum++ {
+		b := &tab.Blocks[blockNum]
+		blockPoints := (*b).Buffer()
+		points = append(points, blockPoints...)
+	}
+	return points
 }
 
 type Tabpane struct {
-    Block
-    Tabs			[]Tab
-    activeTabIndex	int
-	posTabText		[]int
-	offTabText		int
+	Block
+	Tabs           []Tab
+	activeTabIndex int
+	ActiveTabBg    Attribute
+	posTabText     []int
+	offTabText     int
 }
 
 func NewTabpane() *Tabpane {
-	tp := Tabpane {
-		Block:			*NewBlock(),
+	tp := Tabpane{
+		Block:          *NewBlock(),
 		activeTabIndex: 0,
-		offTabText:		0}
+		offTabText:     0,
+		ActiveTabBg:    Theme().TabActiveBg}
 	return &tp
 }
 
@@ -53,19 +56,19 @@ func (tp *Tabpane) SetTabs(tabs ...Tab) {
 	tp.Tabs = make([]Tab, len(tabs))
 	tp.posTabText = make([]int, len(tabs)+1)
 	off := 0
-	for i :=0; i < len(tp.Tabs); i++ {
+	for i := 0; i < len(tp.Tabs); i++ {
 		tp.Tabs[i] = tabs[i]
 		tp.posTabText[i] = off
-		off += tp.Tabs[i].RuneLen+1 //+1 for space between tabs
+		off += tp.Tabs[i].RuneLen + 1 //+1 for space between tabs
 	}
-	tp.posTabText[len(tabs)] = off-1 //total length of Tab's text
+	tp.posTabText[len(tabs)] = off - 1 //total length of Tab's text
 }
 
 func (tp *Tabpane) SetActiveLeft() {
 	if tp.activeTabIndex == 0 {
 		return
 	}
-    tp.activeTabIndex -= 1
+	tp.activeTabIndex -= 1
 	if tp.posTabText[tp.activeTabIndex] < tp.offTabText {
 		tp.offTabText = tp.posTabText[tp.activeTabIndex]
 	}
@@ -75,10 +78,10 @@ func (tp *Tabpane) SetActiveRight() {
 	if tp.activeTabIndex == len(tp.Tabs)-1 {
 		return
 	}
-    tp.activeTabIndex += 1
+	tp.activeTabIndex += 1
 	endOffset := tp.posTabText[tp.activeTabIndex] + tp.Tabs[tp.activeTabIndex].RuneLen
-	if endOffset + tp.offTabText > tp.innerWidth {
-		tp.offTabText = endOffset - tp.innerWidth
+	if endOffset+tp.offTabText > tp.InnerWidth() {
+		tp.offTabText = endOffset - tp.InnerWidth()
 	}
 }
 
@@ -92,7 +95,7 @@ func (tp *Tabpane) checkAlignment() int {
 	if tp.offTabText > 0 {
 		ret = -1
 	}
-	if tp.offTabText + tp.innerWidth < tp.posTabText[len(tp.Tabs)] {
+	if tp.offTabText+tp.InnerWidth() < tp.posTabText[len(tp.Tabs)] {
 		ret += 1
 	}
 	return ret
@@ -100,13 +103,14 @@ func (tp *Tabpane) checkAlignment() int {
 
 // Checks if all tabs fits innerWidth of Tabpane
 func (tp *Tabpane) fitsWidth() bool {
-	return tp.innerWidth >= tp.posTabText[len(tp.Tabs)]
+	return tp.InnerWidth() >= tp.posTabText[len(tp.Tabs)]
 }
 
 func (tp *Tabpane) align() {
 	if !tp.fitsWidth() && !tp.HasBorder {
-		tp.innerWidth -= 2
-		tp.innerX += 1
+		tp.PaddingLeft += 1
+		tp.PaddingRight += 1
+		tp.Block.Align()
 	}
 }
 
@@ -114,11 +118,11 @@ func (tp *Tabpane) align() {
 // Point can be invisible if concatenation of Tab's texts is widther then
 // innerWidth of Tabpane
 func (tp *Tabpane) addPoint(ptab []Point, charOffset *int, oftX *int, points ...Point) []Point {
-	if *charOffset < tp.offTabText || tp.offTabText + tp.innerWidth < *charOffset {
+	if *charOffset < tp.offTabText || tp.offTabText+tp.InnerWidth() < *charOffset {
 		*charOffset++
 		return ptab
 	}
-	for _, p := range(points) {
+	for _, p := range points {
 		p.X = *oftX
 		ptab = append(ptab, p)
 	}
@@ -133,14 +137,14 @@ func (tp *Tabpane) drawPointWithBorder(p Point, ch rune, chbord rune, chdown run
 	p.Ch = ch
 	if tp.HasBorder {
 		p.Ch = chdown
-		p.Y = tp.innerY-1
+		p.Y = tp.InnerY() - 1
 		addp = append(addp, p)
 		p.Ch = chup
-		p.Y = tp.innerY+1
+		p.Y = tp.InnerY() + 1
 		addp = append(addp, p)
 		p.Ch = chbord
 	}
-	p.Y = tp.innerY
+	p.Y = tp.InnerY()
 	return append(addp, p)
 }
 
@@ -151,41 +155,41 @@ func (tp *Tabpane) Buffer() []Point {
 		tp.Height = 1
 	}
 	if tp.Width > tp.posTabText[len(tp.Tabs)]+2 {
-		tp.Width = tp.posTabText[len(tp.Tabs)]+2
+		tp.Width = tp.posTabText[len(tp.Tabs)] + 2
 	}
-    ps := tp.Block.Buffer()
+	ps := tp.Block.Buffer()
 	tp.align()
-	if tp.innerHeight <= 0 || tp.innerWidth <= 0 {
+	if tp.InnerHeight() <= 0 || tp.InnerWidth() <= 0 {
 		return nil
 	}
-	oftX := tp.innerX
+	oftX := tp.InnerX()
 	charOffset := 0
 	pt := Point{Bg: tp.Border.BgColor, Fg: tp.Border.FgColor}
 	for i, tab := range tp.Tabs {
 
 		if i != 0 {
 			pt.X = oftX
-			pt.Y = tp.innerY
+			pt.Y = tp.InnerY()
 			addp := tp.drawPointWithBorder(pt, ' ', VERTICAL_LINE, HORIZONTAL_DOWN, HORIZONTAL_UP)
 			ps = tp.addPoint(ps, &charOffset, &oftX, addp...)
 		}
 
 		if i == tp.activeTabIndex {
-			pt.Bg = theme.TabActiveBg
+			pt.Bg = tp.ActiveTabBg
 		}
-		rs := str2runes(tab.Label)
+		rs := []rune(tab.Label)
 		for k := 0; k < len(rs); k++ {
 
 			addp := make([]Point, 0, 2)
-            if i == tp.activeTabIndex && tp.HasBorder {
+			if i == tp.activeTabIndex && tp.HasBorder {
 				pt.Ch = ' '
-				pt.Y = tp.innerY + 1
+				pt.Y = tp.InnerY() + 1
 				pt.Bg = tp.Border.BgColor
 				addp = append(addp, pt)
-				pt.Bg = theme.TabActiveBg
+				pt.Bg = tp.ActiveTabBg
 			}
 
-			pt.Y = tp.innerY
+			pt.Y = tp.InnerY()
 			pt.Ch = rs[k]
 
 			addp = append(addp, pt)
@@ -195,7 +199,7 @@ func (tp *Tabpane) Buffer() []Point {
 
 		if !tp.fitsWidth() {
 			all := tp.checkAlignment()
-			pt.X = tp.innerX-1
+			pt.X = tp.InnerX() - 1
 
 			pt.Ch = '*'
 			if tp.HasBorder {
@@ -208,7 +212,7 @@ func (tp *Tabpane) Buffer() []Point {
 				ps = append(ps, addp...)
 			}
 
-			pt.X = tp.innerX + tp.innerWidth
+			pt.X = tp.InnerX() + tp.InnerWidth()
 			pt.Ch = '*'
 			if tp.HasBorder {
 				pt.Ch = VERTICAL_LINE
@@ -221,8 +225,8 @@ func (tp *Tabpane) Buffer() []Point {
 		}
 
 		//draw tab content below the Tabpane
-        if i == tp.activeTabIndex {
-            blockPoints := tab.Buffer()
+		if i == tp.activeTabIndex {
+			blockPoints := tab.Buffer()
 			for i := 0; i < len(blockPoints); i++ {
 				blockPoints[i].Y += tp.Height + tp.Y
 			}
@@ -232,4 +236,3 @@ func (tp *Tabpane) Buffer() []Point {
 
 	return ps
 }
-