Replaces dummy reagent colours

Replaces the dummy reagent colours on dev-freeze. Similar to what Hubblenaut was trying to do earlier, except this only changes the colours and nothing else.

Uses the colours from the forum thread, with some minor adjustments. Kelotane/Dermaline were made a bit more yellow. Tramadol was made a bit more pale. I also threw in some colours for the missing reagents.