Honestly, I wouldn't take issue with this if it wasn't such a boring color scheme. Like, a bright blue bumblebee with teal racing stripes? It's weird, but I can get on board. Or actual proper NEST colors, black with red, green, and silver accents, that could be interesting visually. But they made him fucking grey. Who looks at a character like Bumblebee and goes, "Oh yeah, I'd love that if he were one of the most boring colors imaginable." Even beige would have been more appealing, because who's heard of a beige jeep?