Macro section 

macro_rules! section {
    ($value:expr) => { ... };
    ($value:expr, $fg:expr) => { ... };
    ($value:expr, $fg:expr, $bg:expr) => { ... };
}

Formats a section for presentation.

Arguments

• title- Title’s section
• fg- Text’s colour. If None uses the default colour.
• bg- Text background’s colour. If None uses the default colour.

Returns

A formatted String with foreground and background colours.