It really does come down to vendor and individual batch more so than colour of strain. But there is “some” truth to the strain effects, I do find whites to be a bit better for energy and red more sedative, but all that also depends on dose, as Doug said smaller is more energy while more is sedative. This means you can take a large amount of white and still feel sedated. Red is supposed to be better for pain as well but again the individual batch potency matters more.
Kinda like comparing Sativa to Indica, sativa is “supposed” to be more energetic while indica sedative, but it boils down to individual batch, is it 15% THC or 28%? If both are 28% then I am high as fuck and dont notice the strain, just the smell and taste.
Kratom taste is also noticable, greens likely the worst with white close behind while reds dont taste like mangoes or anything but they are smoother.