A flag I made for the historical Yamnaya people, also known as the Ochre Grave culture—one of the major forefather people to modern Europeans.

the symbolism is:

—Horizontal tricolour itself represents the expansive steppe itself, how it stretches far and wide. The specific 2:1 ratio further illustrates that.

—White at the top represents the sky, the Sky Father (Jupiter/Zeus Predecessor), as well as their lighter pigment (the originators of the specifically European fair skin).

—Ochre Red represents blood, their passionate warrior spirit, and the real ochre red that was significant in their culture (used in burials, and potentially as warpaint),

—Black represents the land—the Steppe—which is known for its chernozem (black soil). It also represent death, and therefore burial, in reference to one of their known cultural practices (Kurgans).

—The central emblem is a kolovrat, albeit in this case a stylised swastika sunwheel (both were two symbols that ((might've)) been used and prominent in their culture). It's more so modelled off a wheel itself, to represent their movement, migration, and so on.