Thess informations are for you, theme makers.

 * your balls should be 90x90 balls if you do not want them to look to small
   or to big, as the same scalling factor is applied to everything. Hence,
   they can be larger or smaller when they explode. To ease your life, you
   should try to have them centered. If you do not want to scale you balls
   by yourself, you can precise their size in the config.txt file by writing
   a line like "BUBBLE_SIZE 60" if your balls are 60x60...

 * The theming relies on a name convention. The bubble files should have the
   following form : 
   
      Bubble_<color>_<state>_<step>.png
      
   Files are sorted alphanumerically to determine the orders of the step (so
   use 01, 02, 03, ..., 10, 11 and not 1, 2, 3, ... ).
   
   <color> have to be black, white, blue, green, yellow, magenta, red or
   brown
   
   <state> can be NEW, READY, LAUNCHED, STUCK, EXPLODING, FALLING,
   RISING, CHAINREACTING, RUNAWAY, DEAD or DEFAULT. If a state is not
   precised, DEFAULT will be used. That's why you should use it. :)

 * The config.txt file contains informations like the effective size of the
   balls (90x90 by default), the color of the title font, the menu font, ...
   Here is an example :
     TITLE_COLOR 245 177 96
     MENU_COLOR 90 70 70
     MENU_SELECTED_COLOR 170 20 40
   The default values are in the config.h and look good with the plain theme.
