Reflector for Mac version 1.6.1 adds iPad Air device frames and general iPad Air compatibility. This version also resolves an issue that could cause device frames to be mispositioned while mirroring or recording.
Release notes for version 1.6.1 can be found here: http://www.airsquirrels.com/reflector/release-notes/?os=Mac
You can download this update by selecting “Check for Updates…” from the Reflector menu. The new version of Reflector can also be downloaded from here: http://www.airsquirrels.com/reflector/download/