Left: simulated diagrams assuming the best-fit values for the fractions of 1P, 2P, and mixed binaries (same layout as Fig. 4). Gray triangles represent artificial binaries within the yellow region, as defined in Section 4. Middle: m_F160W vs. m_F110W − m_F160W CMD, showing the artificial binaries selected in the left-panel diagram. Right: artificial binaries compared with the selected observed binaries, displayed as in Fig. 4.