Directives: footerfont, footersize, footercolour

Note: If the intention is to change the appearance for the whole song, or collection of songs, it is much better to use configuration files instead.

These directives change the font, size and colour of the song footer.

The font must be a known font name, or the name of a file containing a TrueType or OpenType font.

The size must be a valid number like 12 or 10.5, or a percentage like 120%. If a percentage is given, it is taken relative to the current value for the size.

The colour must be a known colour, or a hexadecimal colour code like #4491ff.