Panorama has a powerful built-in UI debugging tool inspired by web development tool chains. To open the debugger, press F6, move your mouse over a piece of Panorama UI, and click. The debugger window will open with details of the selected UI and its context. (If you can't click on a panel, for example because it is configured with
hittest='false' then it is often possible to click a different part of the UI and then manually navigate to the panel in question in the panel hierarchy.)
There are two main parts of the debugger: the panel hierarchy (on the left) and details about the selected panel (on the right).
The panel hierarchy shows a complete tree of all panels currently present in the UI.
This part of the debugger will show all of the CSS rules that apply to the panel, and which rule is ultimately determining a given property value. If you mouse-over any CSS property name, a tooltip will show you detailed information about the property and its legal values.
You can also display the final computed values for all panel properties.