This app was mentioned in 10 comments, with an average of 1.60 upvotes
Is it Light Void?
The icon pack is the Light Void Pro there is also a free version
Try Light Void, it has the same appearance
Edit: Spelling
That is a paid app. Light Void doesn't have black in the middle but it's a nice pack nonetheless
Wallpaper: Google Pixel Live Wallpaper
Icon Pack: Light Void
Calendar Widget: Month
Clock and Weather Widgets: Light Void Widgets
Been lurking for a while, and now that I have my brand new Nexus 5X I can share my first theme! Tried to go with quick access to what I need on a day to day basis, but letting the wallpaper shine. Let me know what you guys think :)
Apologies for the [functional] tag, just realised it's for animated themes.
Wallpaper: https://www.reddit.com/r/wallpaper/comments/beiah2
Slightly edited in Photoshop Express.
Icons:
Light Void: https://play.google.com/store/apps/details?id=com.natewren.lightvoid
Dark Void: https://play.google.com/store/apps/details?id=com.natewren.darkvoid
Theme: Baby_Cookie by MINU on the Galaxy Store
I keep icons simple. I use Light Void.