To reproduce:
- Oped a predefined theme in Visual Style Builder
- Change an image property of an element that already has image (set it to a random local image).

The issue occurs only in Windows 8.

To reproduce:
- Open the TelerikMetroBlue theme and select RadPanoramaElement in the Control Structure window.
- Expand PanoramaBackgroundImage element in the Elements window.

 Please note that the issue occur only in Windows 8.

It would be great to have an auto-save feature in Visual Style Builder for when/if VSB crashes or quits improperly and theme wasn't saved.  

See my forum post for more information, at: 
http://www.telerik.com/forums/visual-style-builder-frozen---does-it-do-any-auto-saving

Resolution: Under Tools>>Settings in VSB there is an option to enable/disable saving auto recovery info and the interval at which this info is saved. The auto recovery data is saved as a .tssp file in the C:\Users\<username>\AppData\Roaming\VsbRecoveryData\ folder. The mechanism is as follows every X minutes the file is overwritten with the current state of the theme in VSB. If VSB is closed gracefully or the theme is unloaded the auto recovery data is deleted. If VSB crashes the data in the auto recovery folder remains. On the next VSB start this folder is checked for content and if there is any the user is offered a choice to load this content.

To reproduce:
Start VSB -> RadButton -> RadButtonElement -> ImagePrimitive - Image -> Browse for image and you will see no change.

Workaround:
Start RadControlSpy using Ctrl + H, select the button, browse to the ImagePrimitive and set the Image property

Resolution: 
The described behavior is not an issue. The image should be set to Image property of RadButtonElement instead of ImagePrimitive. 

To reproduce:

Open VSB go to RadScrollablePanel -> RadScrollablePanelElement -> FillPrimitive and change its back color, you will see that the back color will not actually change.

Workaround:

Set the BackColor using code:

panel.PanelElement.Fill.BackColor = Color.Red;

In the winforms visual style builder app, under View > Settings > Design View, unchecking "snap to grid" doesn't prevent control resizing from snapping to grid.  It still forces it to increment/decrement the sizes by 10 pixels based on the Grid Minor Tick settings.  Workaround: set grid minor tick size to 1px.

To reproduce: 
1. Open ThemeViewer 
2. Choose theme Desert 
3. Check View RTL support
4. Check 'Aero mode on' of ribbonbar & backstageview, after that click on 'show form' button
5. Check 'Aero mode on' of RibbonBar & Office2007 App Men, after that click on 'show form' button and will see that ThemeViewer crash
When set theme Desert and change values of the properties of RibbonBar in the VisualStyleBuilder generate the same error.

Add the ability to style RadCarousel via Visual Style Builder.

VisualStyleBuilder  - does not load all states if the theme is loaded from XML files.

Currently there are many cases where there is too much wasted space. The property grids sizes are fixed and they do not fill the available space in the most optimal way.

Add a VSB feature to export base64 strings.

The Text and Image Primitives of RadButton are not exposed in VSB

Currently there is no way to export theme images as Bitmap (or any other image type).

Resolution: In Q2 2014 SP1 we introduced feature to export images from Visual Style Builder. The issue is the same like ADD. Visual Style Builder - add ability to export base64 strings to images (export image option in the context menu of all Image items). You can follow the link: http://tpdogfood.telerik.com/view#item/111008 

FIX. VSB - error when trying to preview a theme in ThemeViewer and the current directory is different

Open Package Windows7.tssp - RadPageView - RadPageViewStripElement - StripViewContainer - StripViewButtonsPanel - LeftScroll.  Edit Repository Item StripLeftArrow.  Click inside Image property to highlight - Unhandled Exception.

As suggested on the Silverlight PIT's, MAC like themes are very catching and adding a default theme for all controls with this style will be helpfull for developing app's with that desired look

FIX. Visual Style Builder - the color picker should keep the previously added Custom colors after reopening the form and continue adding to the available spots, instead overriding the existing custom colors.

Telerik Metro theme is not exported by VSB

Currenty, VSB does not support GIF images

If you click on the RadGridViewElement node in VSB while one of our predefined themes is opened, you will get an exception.