vim: different styles for different files (multiple .vimrc files)

What do I want to achieve?
-Different colors and tabs for each file type e.g. (python with 4 tabs, but html with 2 tabs and different colors maybe).

What OS I'm using?
-OSX (Mac)


How to do so?

1- in ~/.vimrc type the following

autocmd BufRead,BufNewFile *.c source ~/.vim/c.vim

autocmd BufRead,BufNewFile *.py source ~/.vim/py.vim

2- in ~/.vim/c.vim

syntax on

colorscheme elflord

3- in ~/.vim/py.vim

syntax on

colorscheme delek

Note that in the configuration files, you can do a lot more, 

More color schemes: here and vimcolors.com
To install them: here and here

References:

http://stackoverflow.com/questions/158968/changing-vim-indentation-behavior-by-file-type

https://ajayfromiiit.wordpress.com/2006/06/02/vim-applying-separate-settings-for-different-file-types-for-experienced-users-of-vim/