Prior to my previous previous post which is about my own Derpibooru logo, I also made its background transparent and I currently decided to just post it here. You can open the image in the new tab to see the logo without the white ones (but make sure Chrome stays up to date), or you can go to the site’s Settings, and under the Display section, make sure the Theme is in the “Dark” option (with or without ponyicons).
 
Enjoy ^^
 
With background color: https://derpibooru.org/1573553