stk-code/data/gfx/gfx_fireworkExplosion_a.xml

<?xml version="1.0"?>
<particles emitter="sphere" radius="0.5">

    <spreading angle="180"         />
    
    <velocity  x="0.003"
               y="0.0003"
               z="0.003"           />
    
    <material  file="gfx_sparkFire_a.png"  />
    
    <!-- Amount of particles emitted per second -->
    <rate      min="65"
               max="100" />
    
    <!-- Minimal and maximal lifetime of a particle, in milliseconds. -->
    <lifetime  min="1700"
               max="1700"         />
    
    <!-- Size of the particles -->
    <size      min="0.7"
               max="1.1"
               x-increase-factor="1.3"
               y-increase-factor="1.3"
               />
    
    <color     min="255 255 255"
               max="255 0 0"  />

</particles>