"General Settings": Commands that Affect All Plotting Modes Are

"General settings" : commands that affect all plotting modes are

Text

Controls the colour used for text (ie clock, header, etc). By default this is white but, as with the background, you can make this a standard colour or a user-defined shade.

Text and background colours may be chosen from one of the 30 standard colours shown here. Alternatively you can use DEFAULT which resets the relevant colour to its default. That is white for text, and black for the screen background.

Background

Sets the graphics window background colour. By default this is black, but you can choose from a range of standard colours, or make your own user-defined shade.

Solid Background

By default the background is drawn using a solid colour.

Faded Background

The Faded option draws a background which fades from one colour to another as you move down the screen.

By default the top of the screen is set to the defined background colour value and the bottom of the screen is set to a colour with 50% of the RGB values of the background colour.

Instead of using this automatic colour a separate background colour can also be defined.

Saturation Controls the saturation of all colours in the range 0% (grey) to 100% (fully saturated). Normally all colours are fully saturated (ie 100%) to give the brightest possible display, but you may need to desaturate colours in some circumstances, for example when capturing frames for a video.

Dark Colours Is used to lighten colours for colour printers. Most colour printers use cyan, magenta, yellow and black inks and they tend to render darker colours such as blue and magenta too darkly. This command lightens these colours preferentially so that colour plots look better, even though the display may look strange. Its default value is 0% (ie no lightening), and it may range to 100% (which will turn blues into white). You will need to experiment with your plotter to find the best value, a suggested starting point is 50%.