I'm relatively new to Android, and I really like most everything about it EXCEPT- I'm a bit colorblind and it is hard for me to tell whether a checkbox is ticked or not. Is there any way to globally change the appearance of checkboxes? I'm thinking a red X would be obvious that it was not ticked, and the existing blue (?) checkmark in the box would indicate that it is ticked.

Thanks for any suggestions/info.

-Rick