Gallium vs wxWidgets: What are the differences?
Developers describe Gallium as "Build desktop applications in Go and HTML". Gallium is a Go library for managing windows, menus, dock icons, and desktop notifications. Each window contains a webview component, in which you code your UI in HTML. Under the hood, the webview is running Chromium. On the other hand, wxWidgets is detailed as "It is a cross platform GUI library". It is a C++ library that lets developers create applications for Windows, macOS, Linux and other platforms with a single code base. It has popular language bindings for Python, Perl, Ruby and many other languages, and unlike other cross-platform toolkits, it gives applications a truly native look and feel because it uses the platform's native API rather than emulating the GUI. It's also extensive, free, open-source and mature.
Gallium and wxWidgets can be primarily classified as "Cross-Platform Desktop Development" tools.
Gallium is an open source tool with 3.65K GitHub stars and 134 GitHub forks. Here's a link to Gallium's open source repository on GitHub.