When configuring Hotkeys in TWS, some drop-down menus allow you to choose "Default". For example, you can set your order size to be "Default", "Absolute" or "Available". If you select "Default", TWS will use the values defined in your Order Presets…
You can change the colors and the thickness of the Fibonacci Trend Lines in TWS. Right-click on the desired trend line and select Change Trendline Color or Change Trendline Thickness. Choose the desired color or value and click OK.