Hi Sebastien,

This effect is not available in the WinForms suite, only in WPF. In there is no way to render a transparent background without making all controls transparent as well. 

I hope this will be useful. Let me know if you have additional questions.

Regards,
Dimitar
Progress Telerik

You actually can but not through use of Telerik you have to use windows API, wich leaves the borders and titlebars solid of a telerik form the problems arise with the colors as they are hard to set right, but it is done with api/enablueblur you want set to true for the acrylic effect, ATM the normal solid with a Backcolor set to black gives a off white acrylic form effect, I am hackig it out to make it look cooler with better colors and effects. it is done easily with UWF and WPF, but I prefer winforms as they are faster to build GUIs on, XAML is not hard but it is a very annoying concept, if telerik were to create a rapid XAML form builder that would be sweet, I have thought of it maybe in my spare time XAML WPF and UWP just seem to defeat the purpose of Rapid GUI developmet in my opinion anyway some people love it, some hate it, I just find it time consuming and annoying

Hi Rudyard,

Thanks you for sharing your approach. Would it be possible to share the code that you are using for this?

Thank you in advance.

Regards,
Dimitar
Progress Telerik