There are a bunch of theme apps that you can find on the Google Play Store. However, if you are looking for something edgy yet minimalist, the [UX7] LineOS Dark Theme LG V35 is the most suitable application for your phone. Note that this theme is for the LG V35 with LG UX7 only.

In order to apply the theme on the interface of your phone, just go to settings, pick LineOS Dark, and click the apply button. Then, you will have to restart your phone for the theme to take effect.

Channel your edgy vibes with this app now.