"After customizing and applying a desktop theme, you may notice that the menu bar in various applications is surrounded by white space, as shown in the picture below. This happens due to an incorrect UserPreferencesMask registry value."



For some reason when applying the custom theme the registry value UserPreferencesMask"=hex:9e,3e,07,80" @ [HKEY_CURRENT_USER\Control Panel\Desktop] changes to UserPreferencesMask"=hex:9e,3e,05,80", causing the problem.

The problem can be resolved by changing the registry value back manually or with a .reg file, however can this registry change somehow be added/prevented to/from within the .theme file itself (so I will not have to run a .reg file every time I change themes)?

This was already mentioned a while ago:

Visual Effects - Menu style option?

@Shoshoni: I don't see how this covers my topic, read my question again please.

Sorry, I didn't read your post that carefully. Have you tried to open the .theme file with Notepad? There's a section that covers the [HKEY_CURRENT_USER\Control Panel\Desktop] key. Add or change the value if needed.

Hope this helps.

Thank you, that is exactly what I am looking for

Tried to add the following in my .theme, but it did not change the registry value.

I suppose so.

Nothing happend

I'm at home now. I will look into it for you. This afternoon I was at work.

Any luck?

I've seen that on numerous occasions and often just changing the theme or it's style/color will fix it. If you do find a fix please do share it with us.