adding stylesheets globaly to admincp

[Dr.CustUmz]

this is in regards to my addon font awesome

I'm trying to add the stylesheet to the admincp so i can use that font inside (like in my options)

I have tried adding:

@import url('../../font-awesome/css/font-awesome.min.css');

to the beginning of my control panels css file (controlpanel.css)

and I have tried adding:

<link rel=\"stylesheet\" type=\"text/css\" href=\"../font-awesome/css/font-awesome.min.css\" />

inside of includes/adminfunctions.php along with a few other files, including admincp/options.php

although i cant seem to get the icons to show up if i use them in my product xml for example

<phrase name="setting_drc_rb_gst_msg_title" date="" username="DrCustUmz" version="1"><![CDATA[<i class="fa-li fa fa-check-square"></i> Welcome Message]]></phrase>

not exactly how i want to use it but something like that.

i want to be able to use the icons in my product files, then say the product has options, in the settings i could use the icons anywhere.

or anywhere else in the admincp for that matter