Fig. C.1.

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Top: Clean bulge de-reddened CMD for sources within 1° from (ℓ,b) = (0° , − 6° ), with overplotted a selection of MIST isochrones with [Fe/H]= − 0.1 and [α/Fe]= + 0.1. Bottom: distribution absolute magnitudes for sources with (g − i)0 ≥ 0.8 (dash-dotted line in top panel), with Gaussian fits to the double RC (purple and green curve) and to the RGB bump (blue curve).
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