Default Do the 'vibrant' screen colours in stock roms change when you flash to CM?

Hello all!

When you have a Sony android you have the Bravia Engine to product 'vivid' and gives the screen an higher quality. Uses the screens full potential in colours and makes everything look HD on the phone.

Now say for example, all the nice colours and HD quality of the screen that you get using the stock rom that the phone came with and you change to a different ROM like PA or CM - would the screen still be as vibrant and HD as if it were to be on stock or does LG have an engine like Sonyhat once stock is removed the nice hd colours are gone since the 'engine' was only in stock?
AT&T LG G2 - CM11

Once you go LTE, you never go back.