Customizable PnL Line Colors for Open Orders

Currently, the PnL (Profit and Loss) line displayed for open orders is shown in default red and green. While this works for many users, some traders prefer using neutral or custom colors to reduce visual distractions and minimize emotional bias during trading.

I suggest adding an option to customize the color of the PnL line (or disable the color entirely), allowing users to tailor the interface to their trading psychology and preferences. This small change can contribute to a more focused and emotion-neutral trading environment.