sketch_title

The sketch_title method is probably unique to propane and JRubyArt, it is a convenient way to set the title of the sketch frame. Normally you only want to set the title once, so sensible it belongs in the setup definition.

def setup
  sketch_title 'My sketch'
end

Should you want a dynamic readout of say frame_rate, put it in the draw loop (however there will most likely be some sort of performance penalty) eg:-

TITLE_FORMAT = 'frame: %d - fps %0.2f'.freeze
  # ... some code
def draw
  sketch_title(format(TITLE_FORMAT, frame_count, frame_rate)) if frame_count % 10 == 0
  # ... some code
end