Evolution of the second-order dark–bright–rogue wave of the three-component NLS equation (a) q₁, (b) q₂, (c) q₃ by choosing α = 1/1000, β = −1/1000, d₁ = 1, d₂ = 0, d₃ = 0, m₁ = 0, and n₁ = 0.