So entirely glad you changed your mind. I am sure most of us are! Cant go wrong with white black and blue.
Hope your daughter is ok with it. Maybe see if she will help cut pre marked sleeving or heat shrink while watching a movie together or whatever. Or anything. Then she actualy helped build it. Thats way better than just picking colors. ( I think )
Have you considered a slightly different combination for each computer? That would be very clean and organized.