Radial variation of the contrast profile, 𝒞(R)( = I_b(R)/I_ib(R)) at t = 1.75 Gyr (corresponding to an early growth phase of the bar) and t = 9 Gyr (corresponding the to end phase of the bar). The vertical maroon dashed line denotes the value of R_bar, 1, while the vertical blue dashed line denotes the value of R_bar, 5. At t = 9 Gyr, the contrast profile, 𝒞(R) shows multiple within the extent of the bar as opposed a single-peaked contrast profile at t = 1.75 Gyr.