Comparison of $\delta {\gamma }_{\mathrm{t}}^{\text{theory}}$ and $\delta {\gamma }_{\mathrm{t}}^{\mathrm{obs}}$ and the halo mass-induced residual tangential shears from UNIONS. Different panels correspond to the results in different stellar mass bins. In each panel, the blue and red symbols with error bars correspond to the δγ_t from the theory-based and observation-based approaches, respectively. Shaded regions of different colors correspond to the different degrees of the halo mass-induced shear residuals.