Excel 2013 Task Pane UI

Hi All,

I am developing a VSTO add-in and I want my custom task pane to have a look & feel like Excel 2013. So there are couple of things to consider:

1. Task Pane Tab i-e Shape options and Text Options

2. Second Level Tabs - Icons 

3. Transitions on Both Tab Selection 

That's it. Any ideas I would love any pointers on it? 

Thanks,

Attiqe Ur Rehman