Complex sentence: Also, Walkers school colors were changed from crimson and silver to McNair's blue and white-and the mascot was also changed from the Walker High Warhawks-to the McNair Mustangs.
Split into simpler sentences: Also, Walkers school colors were changed from crimson and silver to McNair's blue and white. The mascot was also changed from the Walker High Warhawks-to the McNair Mustangs.