Trudging over pure white virgin ground
March the tortured denizens of irascible black
The young and angry of the home guard
In their uniforms of uniform black
While the rank and file secure the page
They are headed by ever higher ranks
And supported by attachments of additional corps
Wave upon wave of evil defile the remaining unblemished tome
Grinding in footprints of solemn, morbid, boring black

Should not the green eyed monster
Seething in envious jealousy
Be exposed in it’s true colour

While sorrowful blue in all it’s pain
Stain the words of it’s refrain
In the proper hues of blue

And for cowardly yellow
Hide the words
That caused the frightful horror

Anger Seething red
By it’s own very nature
Would make it’s feeling felt

While white cannot be shown on a field of white
As all other colours can
White’s purity is best portrayed carved into a background of black

Mixtures of moods however unlikely
Could combine the colours of the relevant moods
For sorrowful anger purple could do

Swearing, vulgar and crude language
Is purported to be colourful, sometimes just blue
Characters of offensive words are totally or partially disguised
Replaced by the unpronounceable characters @#$%^&*
With no direct character conversion, no specific colour can be used
So while f#@k is a straight substitution with little to think about
#@$!#$&^ #*&%^$#$%^ denotes non specific vulgar language
Left for you to work out