Actually, in Libya, the rebels cast aside Gaddafi’s all-green (Islamic) flag for the old Libyan monarchical-era one. I’m not sure I’d read too much into the precise colors of the various adopted flags: they’re symbols, used to rally and unite the masses to support a cause. Green / white / black color schemes are pretty common in the ME, as green / red / yellow are widespread in Africa, and red / white / blue are frequent in the various countries of the west.
And I don’t deny there are Muslim brotherhood types involved in the fighting in Syria, nor do I deny it’s an issue of genuine concern. I don’t think the outcome here, however, is as inevitable as it sadly always was in Egypt. I guess only time will tell who’s right here.