Synthetic γ-ray emission maps (top row) and significance maps from LHAASO Collaboration (2024a) (bottom row). Both the model and data have been smoothed using a Gaussian kernel of σ = 0.3°. The top of the colour scale is set to the maximum and the bottom to 10% of the maximum. The white cross marks the position of the stellar association Cygnus OB2. The figure demonstrates that the model is in good agreement with the γ-ray morphology and its energy dependence.