Alicent swaps green dresses for blue in 'House of the Dragon's Season 2 finale. Here's why.

For Alicent Hightower (Olivia Cooke), green is out and blue is in.

House of the Dragon's dowager queen made green her signature color all the way back in Season 1, a reference to the green fire House Hightower lights in Oldtown when it calls its banners to war. Since then, the color green became synonymous not just with Alicent, but with her son Aegon II Targaryen (Tom Glynn-Carney) and his supporters.

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