21 May 2018
To be able to use these icons you need to copy the science-and-technology.css to your helium custom folder.
Copy {HELIUM_ROOT}/src/main/webapp/helium/icons/science-and-technology.css and place it anywhere below your helium custom folder
<i class="ti-c ti-launch-c"></i>
<i class="ti-c ti-medium ti-launch-c"></i>
<i class="ti-c ti-large ti-launch-c"></i>