[C++] Easily Create Your Own Numix-Based GTK Themes With Oomox

Oomox is a tool used to generate various color variations of the popular Numix GTK 2/3 theme. 
    


    The tool features built-in presets , but it also allows changing theme colors individually , and it can even generate random themes. The themes generated using Oomox support GTK3, GTK2 and include Openbox and Xfwm4 themes. 
    Also, the latest Oomox 0.15, released a few days ago, includes initial support for Unity . What's not included yet is the ability to change the Unity theme image colors and as a result, the window buttons color used by themes generated using Oomox won't change in Unity (so the default Numix color will be used for this).


                 Monovedek Oomox preset (Unity / Ubuntu 16.04)                Note that Numix theme requires GTK 3.16 or newer , so the themes generated with Oomox require the same version. 
    As far as Ubuntu is concerned, Ubuntu GNOME, Xubuntu, Ubuntu MATE, Lubuntu and Ubuntu (with Unity) are supported. Since it requires GTK 3.16 or newer, than means you need to be using an Ubuntu 15.10 or 16.04 flavor for the themes to work. 
    An easier way to change theme colors would be GTK Theme Preferences but unfortunately, this tool no longer works with some themes. For instance, in Ubuntu 16.04, GTK Theme Preferences can change both GTK2 and GTK3 theme colors for Ambiance and Radiance themes, but it doesn't work with the Numix GTK3 theme. 
   Here are a few more screenshots featuring themes generated using Oomox: