Github Logo in UNITE integration application

Hi,
As Persistent systems we are developping a GitHub integration to IBM ELM solutions.
As part of it we do display the Github logo on the UNITE portal within proposed size.
Inside the product we do flag the lines that have a GitHub source content. We do display it with a 16x16 size as other sources. Changing the size would have a big impact on usability as this is part of list table that user can select.
What would be the process to get it authorized with that size.
Have a great day
Bertrand Raillard - Perrsistent Systems