Synthetic RADMC-3D images based on our nominal simulation. The disk inclination is 45^°, and the angular position of the planet is 45^° clockwise from the disk major axis. (a) Example channel map of C¹⁸O. The inset shows the CO bubble in detail. (b) As in the first panel, but ignoring freeze-out. (c) Example channel map of ¹³CO. (d) Dust continuum emission at 1 mm. Each image also contains the wavelength at which it was taken. The width of the inset is 1.3 arcsec. The color scale, which represents the emission intensity, is kept fixed between panels a-c.