Lawnchair app
Lawnchair is System application that is open source under the Apache-2.0 license.Lawnchair. Get it? It's a bad pun, we know. Based on Launcher3 from AOSP, Lawnchair has all the features of the Pixel Launcher (including the Google Feed), plus customizability. Best of all? No root required.
NOTE: These are alphas of the upcoming version for Lawnchair 2 – very early birds! Use at your own risk!
Icon size, label, rows, and columns are all adjustable. Lawnchair also supports icon packs, and the Pill is customizable as well. These aren't the only features, and more are added regularly.