Change button text and background color
Use the following css to change the color of all share buttons:[class^=mashicon-] .text{ color: #6e6e6e; }
The code sample below are showing how to change the background color of a specific button:
Facebook button:.mashicon-facebook { background: #2d5f9a; }
Twitter button:
.mashicon-twitter{ background: #2d5f9a; }