Here is my oppinon on this matter....and it may be wrong but bare with me.
I believe that the smaller birds (which most of the ornamental colors as betta called them hehe) take after their wild ancestors more (the pharoah) and in doing so are more skiddish. I say this because I noticed that if the bird is bred to be bigger (i dont have any jumbo size YET but they are getting close) that the bigger they get the more casual they get. I have my FIRST ever pen of tibetans (i call them red tibetans they are very dark but when hatched they have a red down over a tibetan pattern) will eat right out of my hand and call for me just like the jumbos do.
My tuxedos are all normal size, so all of them are still a bit skiddish.. however some of my more nicely marked tuxedos are actually pick-up-able.
Also, betta, brown doesn't normally produce tuxedo when bred to an A & M, that means your brown carries A & M, and your A & M carries tibetan (or vise versa). They have to carry both genes to produce the tux pattern.
I had had golden over tuxedo and wasn't having any sucessful hatches until my buddy Mark hatched out one of their eggs sucessfully it's a tuxedo (not a nicely marked one but atlesat it's chest is white) this means that my golden boy carries A & M.
You can cross A & M with any color, and then that bird if bred to a tuxedo or a tibetan CAN give you tuxedo.
A & M is a crutial bird to keep around if you're wanting the tux gene.
However like say you have a golden (like in my case) that is carrying A & M, when bred to a tibetan or a tux, it is NOT going to produce a Golden tuxedo... to produce a golden tuxedo takes a whole laundry list of breedings to produce, and it's not perfected yet in those that are producing it.
This was totally off the topic but sounded kinda appropriate here lol!
For tamer *other colors* you'll want to breed for bigger birds, and also incorporate jumbo brown or jumbo golden or jumbo A & M into the mix. IF you have big A & Ms those would be PERFECCT to breed into theo other colors as it's recessive... so say you breed it to tibtan, you'll get tuxedos, and tibetans... and over selective generations you can produce a bigger tux, with a calmer disposition... IF you are lucky enough to actually have the true sized A & Ms. Even my A & Ms arent the true size.. they are around 6-8 oz nothing worthy of what the Texas Uni was producing t hem for which is sad....but here, th ey are only here for genetic use not anything else. I have an A & M roo in with my browns now, also in with my reds (which is a tibetan with a red shade), and in with my tuxedos. I was told by a very valuable breeder that A & Ms will keep any color around you're needing tokeep around...
IF you're breeding for color.