By default, the configuration file profile.json is located at ~\AppData\Local\Packages\Microsoft.WindowsTerminal_8wekyb3d8bbwe\LocalState
Note that, in configuration file, ms-appdata:/// is a UWP URI scheme, which means the path ms-appdata:///roaming is equivalent to ~\AppData\Local\Packages\Microsoft.WindowsTerminal_8wekyb3d8bbwe\RoamingState
Put your image files into RoamingState folder ~\AppData\Local\Packages\Microsoft.WindowsTerminal_8wekyb3d8bbwe\RoamingState


