Colour-composite (Y-red, i₂-green, and r₂-blue) image showing the entire area covered by the Subaru-HSC observations of IC 1396. The position of the central massive star(s) HD 206267 is denoted by a red cross mark (×). Prominent BRCs of the complex are marked similarly to those in Fig. 1. The image appears pink, primarily around the border and towards the northwest region. This is mainly due to missing data in one of the r₂ or i₂ bands. In the northwest region, the pink colour is due to the missing i₂ band, likely caused by bad pixels in that band. However, the final catalogue does not include sources affected by bad pixels or regions, and only stars with photometry in all three bands are included and spurious sources have been removed by applying certain flags (see Section 3.2). Inset: a zoomed-in region in the r₂ band, covering a 1^′ × 1^′ area centred at α = 21 : 39 : 04.34 and δ = +57 : 35 : 10.95, demonstrates the impressive resolution of the HSC observations. Location of this region is shown as a magenta square and highlighted through the cyan arrow. A scale bar of 10 pc is shown at the top of the image.