Top: stellar density profile along the NGC 300 major axis. RGB star counts are shown by circles. The orange line with a shaded region indicates the integrated light profile in the Spitzer 3.6 μm band. Surface brightness is shown on the right y-axis, and can be converted to V-mag by adding ∼2.0 mag. Solid lines indicate fits to the resulting three regions using exponential-law models. Also shown is a fit to the outermost component with a power law (dashed line). Bottom: Q-color distribution of the bright RGB stars with F814W ≤ 24.5 mag. Individual stars and their median colors are indicated by gray dots and red circles, respectively.