You asked about the contast / brightness controls :
> Couldn't they just be integrated within the brightness/contrast slider display window, similar to the way that the tab for "Freq. Max. and Min." has the numerical settings displayed next to the adjustment spinners?
The problem is that those sliders are 'TScrollBars' (in Borland's visual
component library) which don't allow text on / in them. So the only
solution would be placing the text (number) on the side of the scroller
as an extra field, reducing the usable slider width, making them very
difficult to use especially when the area on the left side of the main
window shall not occupy too much screen space.