input: [1] int [2] Indicates how dark the peak will be displayed in the browser (1-1000). If ‘0’, the DCC will assign this based on signal value. Ideally average signalValue per base spread between 100-1000. [0] 
output: score
options: f i e l d
options: c h r o m
options: c h r o m S t a r t
options: c h r o m E n d
options: n a m e
options: s c o r e
options: s t r a n d