(Top) Two-color images with GLIMPSE 8.0 μm data in cyan and THOR+VGPS 21 cm continuum data in red. H ii regions have 8.0 μm emission surrounding the 21  cm emission. Although not shown, MIPSGAL 24 μm emission has a similar morphology as the radio continuum for H ii regions, and is essentially absent for SNRs. The candidate SNRs are enclosed by green circles, known SNRs by red circles, and known or candidate H ii regions by white circles. Dotted boxes enclose the areas displayed as insets below. These insets show a known H ii region that has bright 8.0 μm emission (left; G028.022−00.043), a known SNR (middle; G27.4+0.0), and an example SNR candidate (right; G26.75+0.73). The H ii region has strong 8.0 μm emission surrounding the radio continuum, but the known and candidate SNRs are devoid of 8.0 μm emission.