For:
interfaces\smpl\templates\static\images\control_pause.png
interfaces\smpl\templates\static\images\control_play.png
interfaces\smpl\templates\static\images\drive.png
interfaces\smpl\templates\static\images\drive_go.png
interfaces\smpl\templates\static\images\bullet_arrow_down.png

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Silk icon set 1.3
_______________________________________
Mark James
http://www.famfamfam.com/lab/icons/silk/
_________________________________________

This work is licensed under a
Creative Commons Attribution 2.5 License.
[ http://creativecommons.org/licenses/by/2.5/ ]

This means you may use it for any purpose,
and make any changes you like.
All I ask is that you include a link back
to this page in your credits.

Are you using this icon set? Send me an email
(including a link or picture if available) to
mjames@gmail.com

Any other questions about this icon set please
contact mjames@gmail.com

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The website states the following:

License

I also love to hear of my work being used, feel encouraged to send an email with a link
or screenshot of the icons in their new home to mjames at gmail dot com.
This work is licensed under a Creative Commons Attribution 2.5 License.
This means you may use it for any purpose, and make any changes you like.
All I ask is that you include a link back to this page in your credits
(although a giant link on every page of your website really isn't needed, contact me to discuss specifics).

The icons can also be used under Creative Commons Attribution 3.0 License (Hi Debian folks!)
with the following requirements:

    As an author, I would appreciate a reference to my authorship of the Silk icon set
    contents within a readme file or equivalent documentation for the software which
    includes the set or a subset of the icons contained within.
