You can make it another color by changing the conditional formatting. In each cell there's a hidden formula that says 'if number is over xxx, make cell red', if number is xxx-xxx, make cell blue, if number is xxx-xxx, make cell yellow...etc. The offending one says if number is 50 or below, change it to 'Color # (neon green)'. To fix this, you need to change that color # on the 50 and under condition. You can change this in one cell, exit - go back to that changed cell and COPY. Highlight all the rest of the cells where numbers are to be entered...then RIGHT CLICK. Choose 'Paste Special'...another menu comes up. On that menu, select 'Paste Format Only'. I THINK the action button says 'OK' but it may say something like 'apply'...can't remember that one.
I'll be glad to fix it for you if you'd like...just pm me, you'll need to give me permission to access your ssheet first then remove me when it's fixed.