diff --git a/pwsetup/pwsetup.go b/pwsetup/pwsetup.go
index 75cc949..fd02f05 100644
--- a/pwsetup/pwsetup.go
+++ b/pwsetup/pwsetup.go
@@ -8,6 +8,9 @@
 package main
 
 import (
+	"log"
+	"os/exec"
+
 	"github.com/gdamore/tcell/v2"
 	"github.com/rivo/tview"
 )
@@ -19,13 +22,21 @@ type PWSetup struct {
 
 var pwsetup PWSetup
 
+func pwset() (*string, error) {
+	cmd := exec.Command("ls -l")
+	output, err := cmd.Output()
+	if err != nil {
+		log.Fatal(err)
+	}
+	res := (string(output))
+	return &res, err
+}
+
 func main() {
 	app := tview.NewApplication()
 	pages := tview.NewPages()
 
-	text := tview.NewTextView().
-		SetTextColor(tcell.ColorGreen).
-		SetText("Samplerate: " + pwsetup.samplerate)
+	text := tview.NewTextArea()
 
 	form := tview.NewForm().
 		AddDropDown("SampleRate: ", []string{"44100", "48000", "96000"}, 0, func(option string, index int) {
@@ -36,7 +47,13 @@ func main() {
 		}).
 		AddTextView("Notes", "Set sample rate and buffersize for Pipewire", 40, 2, true, false).
 		AddButton("Set", func() {
-			text.SetText("SampleRate: " + pwsetup.samplerate)
+			_, err := pwset()
+			if err != nil {
+				text.SetText("ok", true)
+			} else {
+				text.SetText("Fehler", true)
+			}
+			//text.SetText("Hallo Welt", true)
 			pages.SwitchToPage("result")
 		}).
 		AddButton("Quit", func() {
@@ -44,7 +61,10 @@ func main() {
 		})
 
 	form.SetBorder(true).SetTitle(" Pipewire setup ").SetTitleAlign(tview.AlignLeft)
+	form.SetFieldBackgroundColor(tcell.ColorDarkBlue)
+	form.SetFieldTextColor(tcell.ColorAntiqueWhite)
 
+	form.SetButtonBackgroundColor(tcell.ColorDarkBlue)
 	pages.AddPage("pwsetup", form, true, true)
 	pages.AddPage("result", text, true, false)