Dark theme #665 fixes

[tom-englert]

@siegfriedpammer as requested in #2334

[siegfriedpammer]

Wow... you are really fast! Thanks for fixing this...

I just found another problem:

I am unable to find the correct location to change the background color of the tab that the cursor is currently hovering over and also the text color of the explanation looks a bit strange if everything else is black.

Sorry for throwing so many things at you currently. If I were more versed in WPF theming I would fix it myself. Thank you so much!

[tom-englert]

@siegfriedpammer no problem, better you find them before they make it into the release 😏

[siegfriedpammer]

I found another issue: The access keys of the buttons in the "Manage assembly lists..." dialog are no longer working properly... Seems the ContentPresenter is not setting the RecognizesAccessKey property to true somewhere.

[christophwille]

I found another issue: The access keys of the buttons in the "Manage assembly lists..." dialog are no longer working properly... Seems the ContentPresenter is not setting the RecognizesAccessKey property to true somewhere.

@tom-englert Are you going to add the fix for this to this PR?

[tom-englert]

Just pushed...

[siegfriedpammer]

Thank you for fixing these issues so quickly!

[tom-englert]

@siegfriedpammer P.S. thanks for the thorough testing, pointing me to views and features I missed to test - most of them I even didn't know they exist. 😄