ers (Window Borders)

Name: tarmac
Author: gardesk

ers is a standalone window border renderer for macOS. It draws colored overlay borders around application windows using private SkyLight framework APIs.

Built as a companion to tarmac, but it runs independently and can be used with any window manager (or without one).

Sections

Overview — what ers does and how it works
Configuration — configuring borders through tarmac
Standalone Use — running ers independently