It's a GitHub Trending repositories Viewer with Material Design. (https://github.com/trending)
It supports more than 50+ program languages and you are free to add/remove/sort them.
It supports nine kinds of color themes.
This app is also open source in Github. (https://github.com/laowch/GithubTrends)
Supported program languages list: (Sorted by A-Z)
ActionScript, ApacheConf, Assembly, Batchfile, C, C++, C#, CMake, CSS, Clojure, CoffeeScript, Common Lisp, Crystal, D, Dart, Elixir, Emacs Lisp, Erlang, F#, Game Maker Language, Go, Groovy, HTML, Haskell, Haxe, Inno Setup, Java, javascript, Julia, Kotlin, LiveScript, Lua, Makefile, Matlab, NSIS, Nimrod, OCaml, Objective-C, Objective-C++, PHP, PLSQL, Pascal, Perl, PostScript, PowerShell, Python, QML, R, Ruby, Rust, Scala, Scheme, Shell, SuperCollider, Swift, TeX, TypeScript, Verilog, XSLT.