stk-code/data/gui/materials.xml

<?xml version="1.0"?>
<materials>
 
  <material name="speedback.png"    compositing="test" clampU="Y" clampV="Y" light="N" ignore="Y"/>
  <material name="speedfore.png"    compositing="test" clampU="Y" clampV="Y" light="N" ignore="Y"/>
  <material name="notes.png"             compositing="test" light="N" ignore="Y"/>
  <material name="soccer_player_red.png"             compositing="blend" light="N" ignore="Y"/>
  <material name="soccer_player_blue.png"             compositing="blend" light="N" ignore="Y"/>

</materials>