White background - Text hardly readable

[mr_jimmybob]

Hello.

Is there a way to change the white background?, It used to be a nice dark grey, but now for some reason, I get a white background that makes the text very hard to read.

As you can see in the image, it is hard to see due to low contrast:

   

And also the playing page is white and ugly:

   

I have a Raspberry Pi 2 with a HiFiBerry Digi+ pro all with an official 7-inch touchscreen. Both the touchscreen and remote access via web from a mobile or my desktop computer show the white page when selecting media or during playback; But not during config as you can see in the next image:

   

I have:

Linux moode 4.14.32-v7+ #1105 SMP Tue Apr 3 19:08:49 BST 2018 armv7l GNU/Linux

Is there a way to fix this? (maybe to apply a theme or get the grey background back?)

Thanks.