How to customize the appearance of WinForms StatusBarAdvPanel?
Appearance of StatusBarAdvPanel
Office2013 StatusBar like tooltip appearance can be achieved by using the PopUpControlContainer and StatusBarEx.
C#
private void statusBarAdvPanel3_MouseEnter(object sender, EventArgs e)
{
this.statusBarAdvPanel3.ForeColor = ColorTranslator.FromHtml("#4393cf");
// To show the Popup control for specified location.
this.popupControlContainer1.ShowPopup(new Point(Cursor.Position.X - this.popupControlContainer1.Width / 2, Cursor.Position.Y - this.popupControlContainer1.Height - 2));
}
private void statusBarAdvPanel3_MouseLeave(object sender, EventArgs e)
{
this.statusBarAdvPanel3.ForeColor = Color.DimGray;
//To hide the Popup window
this.popupControlContainer1.HidePopup();
}
VB
Private Sub statusBarAdvPanel3_MouseEnter(ByVal sender As Object, ByVal e As EventArgs) Handles statusBarAdvPanel3.MouseEnter
Me.statusBarAdvPanel3.ForeColor = ColorTranslator.FromHtml("#4393cf")
' To show the Popup control for specified location.
Me.popupControlContainer1.ShowPopup(New Point(Cursor.Position.X - Me.popupControlContainer1.Width \ 2, Cursor.Position.Y - Me.popupControlContainer1.Height - 2))
End Sub
Private Sub statusBarAdvPanel3_MouseLeave(ByVal sender As Object, ByVal e As EventArgs) Handles statusBarAdvPanel3.MouseLeave
Me.statusBarAdvPanel3.ForeColor = Color.DimGray
'To hide the Popup window
Me.popupControlContainer1.HidePopup()
End Sub

Figure 1. PopupControlContainer shows on mouse hover of the StatusBar items.
Samples:
C#: StatusBarAdv_Office2013_C#
VB: StatusBarAdv_Office2013_VB
Reference link: https://help.syncfusion.com/windowsforms/statusbaradvpanel/appearance-settings