Mnemonics

'BACKGR' or 'BK' Next Colour Is Background

	GUI Display/Printer or Character Display
Format	Long or short form: 'BACKGR' or 'BK'
Description	Use either 'BACKGR' or 'BK' to designate that the next colour mnemonic (e.g., 'BLUE') is the background colour for the text region when a directive sends output to the display device (i.e., PRINT, INPUT, etc.).
Example	0020 PRINT 'BK','BLUE','WHITE',"Hello, ",USER_ID$,