How to really loop over filenames with spaces in

 Don't parse the output of "ls".

Instead:

for file in *

do

  ...

done

(source)

How to change the colours of directories and files

To change the colour of directories from dark blue to light blue (cyan):

    export LS_COLORS=$(echo $LS_COLORS|sed 's/di=01;34/di=01;36/')

See also

    man dircolors

and

    dircolors --print-database

...for a list of the colours.