That's not true. If you look at Chernobyl Family[1]'s videos, modern Russian war equipment internals and their color choices, there's a longstanding research and deliberate choice behind them.

Soviets/Russians seems to select the seafoam or tealish green colors as backgrounds since these colors create a calmer environment which helps when everything else is pressuring you.

The most interesting thing is public ISS telemetry page at [2]. Go to Russian version and the color scheme changes to a bluish one which they also use with some of the interiors/control panels Russians use in similar equipment.

[1]: https://www.youtube.com/@ChernobylFamily

[2]: https://iss-mimic.github.io/Mimic/