Commit Briefs
allow changing the attributes
`attr' now follows the same rule as `fg' and `bg', with the three airity variant. Attributes by themselves are a comma-separated list of keywords, each one representing a ncurses attribute.
rework color management: introduce the trailing props
now, instead of prefix and line style, I'm adding the trailing style too. This changed the configuration syntax too.
add enable-colors (variable)
currently unused, will help later when adding colour support