It is not the original version but is based on the Hyrule Revival mod. The structures were created using the Atlas terrain tool.

It appears on the main two, which are the menu and the game  My experience with additional steps is that nobody follows them, look at all the incomplete bug reports copying text that tell them to do extra steps Edit for screenshots, on macOS I ussually don't use the ingame tool cause I have no clue where the images are gonna be

@Emacz, why is that added from vanilla? Where did you read that Spartans are characterised by this? What difference does this have between, let's say, other Greeks and Romans?

PR is here: https://gitea.wildfiregames.com/0ad/0ad/pulls/9172

My opinion is that it doesn't add to game play so that makes it superfluous. It doesn't appear on various other screens (lobby, loading). The onus should be on the users to feedback the version info from the About page.  The built-in screenshots could be amended with the version info in source/renderer/Renderer.cpp:795 e.g. const VfsPath filenameFormat{ L"screenshots/screenshot-" + wstring_from_utf8(PS_VERSION) + L"-%04d.png"}; So that would output: screenshot-0.29.0-0001.png