How can I fix the problem with the dark theme, when an attachment is selected the colour is white cant read the text?

When I select an attachment the colour background for the buttons is white  

in the Dark theme 

Em client  7.2

For me this looks good with the new dark theme in 7.2.

But I don’t like the new dark theme because now it is difficult to read emails because auf the dark background.

I will try to install version 7.1 and export the dark design to import it into version 7.2.

Theme support is broken in 7.2.

Example: save original dark theme and import it -> right sidebar has black font instead white