Pill Widget

Pill Widget is a standalone widget that mimics the style and function of the Google Pill widget found in the Pixel and Nexus Launchers.Pill Widget works on all launchers that support widget functionality, tested on Action Launcher, Nova Launcher, Launcher3, and Google Now Launcher. If you would like to theme the Pill Widget, consider purchasing Pill Widget Colors.

Pill Widget Colors: https://play.google.com/store/apps/details?id=org.frap129.pillwidgetcolor

Note: This is only the Pill widget, it does not include the Date and Weather widgets found in the Pixel Launcher.

This app is fully OpenSource

Source: https://github.com/frap129/PillWidgetFree