I miss the amber displays too

but I do like the white/blue displays I recently acquired an old Onkyo and the fluorescent display is just green/aqua probably no color filter as fluorescent displays are that color already
If you are adventitious you can probably take the color filter out for an orange/amber one if you want (WIth a voided warranty of course) but I have a fluorescent display by my HTPC for pc stats and I had no luck finding the color filters except the over priced ones from Matrix Orbital