Microtek ArtixScan 4500t Reference Manual page 122

D. Color Meter Options
These options let you switch display modes between LCH and Native value
display and also let you choose how color information is displayed — in
numbers or percentages. Take note that the Numbers option is available only in
Native color and RGB mode.
E. Sample Display Area
This shows a pixelized display of the area surrounding the cursor. The size of the
sample area depends on the selection made in the Color Meter Options
(discussed next section).
Reference: The Information Window 115