Not Indev it seems, but rather 0.31 which is before indev (though in your list of Minecraft versions you show 0.31 as after indev, but she was in the first version of Minecraft, so that means Indev actually comes after 0.31). But not every version of 0.31 had her. One of them had Steve, Black Steve, and Beastboy instead. Furthermore, I think one of them had all 4 of these early charaters. There are multiple revions of 0.31 but I don't know which she's in. And to further complicate matters, the game itself doesn't indicate which revision it is, just that it's version 0.31 (I know, cause I downloaded a copy of ver0.31's minecraft.jar file and ran it just to see what was actually in the game in that ancient version). Can someone shed some light on this?
The map theme refers to the general style the level generator used to create maps. It was added in Indev 0.31 20100107, and it dramatically affected game mechanics, such as monster spawn zones and boundary liquid. "Paradise" and "Woods" themes were added in Indev 20100214-2. Themes were removed for in the middle of Infdev and were comparable to biomes in Alpha, Beta and current Minecraft versions. 2b1af7f3a8