- add menu showing real memory values etc.
- add support for more resources (eg. memory, CPU not idle)
- add background for loadbars
- add suport for mutiple color in loadbars
- add support for changing the  scale, different color schemes for
  0-1, 0-2 etc.
- add more documentation 

Possibly:
- add menu support to move and close program
- move window with right mouse button ?
