Ed Case color don't fade the wear off through handling or wiping them down with dirty cleaning cloths. What you are saying are brighter colors are due to metal preparation by using a finer grit when polishing before hardening or the application of a protective coat of clear varnish after case hardening.
Your "fish eyes" are a dead give away that the metal has been torched as you will never find those types of patterns on a properly color case hardened piece of steel. Also the uneven heating resulting from your uneven and uncontrolled application of heat actually degrades the strength and toughness of the metal by drawing the temper and hardening in random patterns.
This has all been pointed out to you before. What can't you understand about it?
