This is Swift Light, a Substratum theme. The idea with this theme is to make apps all light. It's inspired by Android O and Samsung, and you use it with the Substratum theme engine. It supports Nexus & Pixel / OxygenOS Nougat / LineageOS / Samsung S8 / OMS / Oreo 8. 0 / Oreo 8. 1 / OxygenOS Oreo.
You can download the installer of Swift Light Substratum Theme 3.0 for free and have a look at users' reviews on Droid Informer. The download of the app is safe and secure. Nishith Khanna is the developer of this application that is included in the Personalization category.
Over 5K users downloaded and set up Swift Light Substratum Theme and the latest release was on Jan 26, 2019. Users rated the app 4.3 on Google Play.