I have RadToggleButton's in my application and they are not following the style set in the mainview.
StyleManager.ApplicationTheme = new Office2016Theme();
Only when i explicetly set the theme like this, the theme is applied
<telerik:RadToggleButton telerik:StyleManager.Theme="Office2016" Margin="5,0,0,0" Width="35" Height="25" ToolTip="Enable Translation Mode" Visibility="{Binding TranslationModeVisible}" IsChecked="{Binding TranslationModeActive}">
<Grid>
<Image Width="25" Height="20" Source="/CSD.Global.Infrastructure;component/Images/report.png" Margin="0,-3,0,0"/>
</Grid>
</telerik:RadToggleButton>