Seriously its not difficult to ctrl+f on the file the 99 and replace it by 255 (don't try 500 or you will need to change the type to short and make a new migration for the database and I'm quite sure you won't understand how it works.)
it's like mechanics if you don't understand how your car work don't event try to change anything in the motor. Its useless to ask your mecanician to because you won't understand his answer without basics.
If you don't understand the code don't even try to change anything on it.