When working on photos, we might want to remove a background element, often a grey sky, to replace it with something "prettier" or just different. We often hear of tThe Background Eraser tool to achieve this first step of removing the unwanted area. Although it is a great tool, it might not always work as you expect it. It might leave you somewhat puzzled by its behavior. Let's have a look at how it works and what the various settings affect the end result for you.