thanks for the answer.
for the DOM bold version is nice too, here is a light version of it, quite classic, if possible, else i will use bold theme:
Details:
clear background: #f0f0f0
current price: font #000000, bg : #ffff00
ask: lower: #0000c6, upper: #b5e3f8, volume: #0032ff,
bid: lower: #ffd8d8, upper: #ac0000, volume: #ea0000,
prices: font: #ffffff , bg: #2f2f2f
grid: #a9a9a9
volumes: font: #30008b, bg: #d3d3d3, bar: #1e90e5
family font: tahoma
For the order panel I just would see QTY and order type together rather than separated by other panels. This way user will have information on top, then action panels with QTY / order type, flatten / recenter / reverse. If thinking in term of flow, I d say defining the order type would come before QTY 'ORDER QTY @ PRICE'