Andrei Surdu

Provides an easy to use interface to assign colors to any term from any taxonomy. Then you can use them on front-end 
using the built-in CSS class or just by calling <code>get_term_meta</code>.

Custom Term Colors

Provides an easy to use interface to assign colors to any term from any taxonomy.

zxial

This plugin provides JSON data to mobile APPs. Here’s the scenarios that you 
could use this plugin: you want to develop a mobile app or app on mac, and the 
app is to show the list of your blogs(in category, tag, or keywords), after 
the app user click one item in the blog list, you would like to show him the 
detail page of the item, but the logos/banners/sidebar of blog is suitable 
only for a desktop other than a mobile device or you want to do something 
different. In the case here, wp_app_json mayble could help.
Code: 
Author: Zxial 
Web: http://zxial.me

WP APP JSON

The WP-APP-JSON is a plugin that provide json data to mobile apps, you can use keywords to search your posts and get detail webpage.

Custom Term Colors vs WP APP JSON