Combined EPIC pn and MOS mosaic image of the SMC region centred at RA = 01:00:30, Dec = –72:28:00 (J2000). The RGB colour image is composed of the three energy bands 0.2 − 1.0 keV (red), 1.0 − 2.0 keV (green), and 2.0 − 4.5 keV (blue) (exposure-corrected and for EPIC pn out-of-time event subtracted, but not detector-background subtracted and not vignetting-corrected). The boxes mark fields with SNRs (orange) and galaxy clusters (green), which are shown in more detail in Figs. 6 and 9. Several X-ray sources, which are mentioned in the text, are marked in white with their catalogue number from Sturm et al. (2012b): 686 the planetary nebula SMP SMC 22; 616 the symbiotic binary SMC 3; 1 the super-giant HMXB SMC X-1; 2519, 2563, 2732, and 3115 new Be/X-ray binaries.