Is there a way to color code crit success or failure for the total of a roll of 3d6 currently

Trying to macro a whole pile of rolls for the production of manastones in a GURPS game.  Need to make a bunch of 3d6 rolls, with different color results for a roll of 16 and another color for 17 or 18. A 10-year old post asking the same question was told it would take an API macro.  Is that still the case, or have new tricks been learned?  (I want to roll 3d6 twenty times at once and highlight 16's in one color (green or blue work) and 17 or 18 in red, while not coloring anything that contains a 1 or a 6 on any of the d6's as it currently wants to do.) Any help would be appreciated please.

There isn't any group highlighting but with some work you can colour a roll overall to match For a single set of 3d6, with red 17, 18 and blue 16, and no other colouring [[ {16 - 13d1cs0cf0 +0*2d1cs0cf0 + 15*d1cs0 -1d1cs0 -1d1cf0}k[[ 19-(((3d6 % 18 + 1 )% 18 + 1) % 18 + 1) ]] ]] For 20 of them you can copy and paste it 20 times There are a couple of open suggestions that would help for this Aggregate critical highlighting [CS/CF] Custom dice syntax So considering adding your voice and vote to them.

That.... is gonna be a long macro... :P Works nicely.  Thank you very much.   :)

Tony said: That.... is gonna be a long macro... :P You can shorten it by putting the command above in an attribute, then calling that attribute multiple times in the macro. 

Heh, the long version is already done, so not gonna worry about it, but thanks.  :)

Hey Tony Are you using the GURPS 4th Edition Character Sheet in Roll20? If not, we use a character sheet integrated Roll Template that identifies Success/Critical Success/Fail/Critical Failure based on the skill level. Or are you trying to create a macro for some other use in GURPS? I would be interested to know what you are doing? If you have time, please DM me, or not. Long Live GURPS!

Character sheet- I believe so.  It has your name on it for some tweaks a couple of days ago at least.  :) I play in a campaign where we're just starting to go industrial-scale (relatively speaking) on quick and dirty enchanting, and I just needed a quick way to check for success/flawed/shattered on the enchanting of 10 and 20-point powerstones, rather than pressing the 3d6 button eleventy bazillion times and trying to keep track of where I was.  :)  So the macro built from RainbowEncoders' answer just rolls 3d6 twenty times and I just look for red or blue numbers to get result.  Red is obvious (shattered, sucks to be me), and blue is a flaw which may or may not be a problem.    Havent got around to sorting specifics on the various accumulated flaws if you have any useful sources on flaw ideas?  Found the magic item book with its table for what the flaw affects and how severe it is, and I have some ideas from various internet threads on specifics, but more ideas are always good. Opinion- You cant use lesser wish or wish to affect the results of a casting of Powerstone (or any spell), but is there anything that would prevent a player from using the Luck advantage to try to avoid a flaw or shattered result if one came up, assuming the advantage wasnt on cooldown?