Add custom color to Image Backdrop

Hello everyone!
I was wondering if it was possible to add a custom color to the Image Backdrop option. 
Before Bridge 13 the default options were pure black, various shades of gray and pure white. The last shade of gray was 240/240/240 and was very useful in my workflow to control many images with a similar background color.
Now in Bridge 13 this last shade of gray has been changed to other values and I had to reinstall Bridge 12 to check these types of images (opening hundreds of images in Photoshop with the custom color I want is not an efficient option).
So, if it were possible to set a custom color in Bridge, as I have been doing for years in Photoshop, it would be very useful for any situation.
I hope this suggestion will be useful for other users.
Thank you!