fig.sty (417B)
1 \tikzset{ 2 >=stealth, 3 thick, 4 block/.style={rectangle, draw=black!50, thick, 5 top color=white, 6 bottom color=red!50!black!20, 7 font=\itshape}, 8 op/.style={circle, draw=black!50, thick, 9 top color=white,bottom color=black!20, 10 font=\ttfamily}, 11 lfo/.style={block,bottom color=orange!80}, 12 env/.style={block,bottom color=yellow!80}, 13 tip/.style={->,shorten >=1pt} 14 }