- black-backgroundprocedure
- red-backgroundprocedure
- green-backgroundprocedure
- yellow-backgroundprocedure
- blue-backgroundprocedure
- magenta-backgroundprocedure
- cyan-backgroundprocedure
- white-backgroundprocedure
If ANSI escapes are enabled, return a string consisting of the string str with a prefix that selects specified background color and a suffix that selects the default background color.
If ANSI escapes are not enabled, return str.