CMD of NGC 330 constructed from HST photometry (Milone et al. 2018), color-coded by v sin i. For a reference, we provide two Padova isochrones at 35 (dashed line) and 40 Myr (dotted line). B-type stars are indicated by circles while Be stars are indicated by diamonds. The color bar only includes v sin i values between 100 km s⁻¹ and 400 km s⁻¹ such that the few stars that rotate more rapidly fall in the last bin. Detected SB1s are indicated by red frames. The example star #654, peculiar stars and stars above the TO are marked by their ID. The four regions defined in Paper II are also indicated.