The format for an application package on Linux varies between distributions (.rpm, .deb, and .tar.gz are common formats for distribution), but they all require the same assets, which we will build now. As well as the compiled application, we need an icon file and a desktop entry file (a standard defined by FreeDesktop.org: standards.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html). The icon file is a simple image file in one of the supported formats: PNG, XPM, and SVG. PNG is recommended for a bitmap icon and SVG is the format to use if your icon is vector-based.