It would be nice if Corona could write a quick Perl/Python script that will parse a .lua file and update the color settings to gfx 2.0 format. Even better do it at a directory level recursively. This is as simple as finding all the occurrence of color related api calls and dividing the values by 255.
If I had a list of all the api calls that required new color changes I could throw something together, but would be awesome if you guys can whip it together or even throw it in as a macro in “Corona Editor” plugin.