Some UI elements in Earth Engine (labels and buttons) support image icons, but the feature has some quirks that aren’t well-documented. Here’s a quick look at four ways you can implement icons in an Earth Engine app. This post was inspired by a tweet from @jstnbraaten that I have to dig up every time I want to use this feature. Loading From GStatic As described in the docs, external image icons can only be loaded from Google’s CDN, gstatic.