.net - Blurred/Pixellated display of DataTemplate for ComboBox in WPF -

I have a datatapple to give the item for display in both a list box and a combo box. The window I made Looks like this:

I have a question that there is a little more pixels than the dynamite blur or displayed in the list box in the combo box. It is hard to see on screenshots, but when I'm actually using the application, it seems more noticeable that some know why this is happening? Is there something like that ClearType is being enabled for one control and not for another?

Any ideas will be appreciated, if necessary, I can post the code.

Compared to list box, text is blank on the combo box because ClearType is disabled on popup (for combo box One by one) from the linked article:

In a popup, which has a separate Win32 window, there is no way of WPF ClearType system to know what the pixels are behind (different Suspicious and slow without win32 tricks) so it is only disabled.