Ah, okay. I usually use the second argument of beginFill for specifying the alpha. Flash has quite a few quirks with Number vs int vs uint (it tends to switch

Ah, okay. I usually use the second argument of beginFill for specifying the alpha. Flash has quite a few quirks with Number vs int vs uint (it tends to switch types internally) so it could well be something to do with that. In fact, 0xFFFFFFFF is one of these cases: var n:uint = 0xFFFFFFFF; trace(n, getQualifiedClassName(n)); // result: 4294967295 Number