Combined a vbs script that installs the fonts that are present in the current directory in Windows 10 with a PowerShell script that modifies the apperance of the 'Ubuntu on Windows' bash to look like its counterpart in the original Ubuntu. Settings for this found on https://medium.com/@jgarijogarde/make-bash-on-ubuntu-on-windows-10-look-like-the-ubuntu-terminal-f7566008c5c2 and fonts are from http://font.ubuntu.com/ .
The vbs changes or adds setting options only when the [HKCU/Console/ubuntu] item exists. Users can open regedit.exe and navigate to [HKCU/Console] to check whether the ubuntu subitem exists or not. When the subitem does not exist, open ubuntu.exe and customize the properties. Customizing ubuntu.exe will generate a ubuntu subitem. The user can then run the vbs script for automatically customization.
If the vbs script does not work, use the wsl_ubuntu.reg file. First open regedit.exe and navigate to [HKCU/Console] in which find the subitem which match ubuntu and copy the item name, e.g. C:_Program Files_WindowsApps_CanonicalGroupLimited.UbuntuonWindows_1804.2018.817.0_x64__79rhkp1fndgsc_ubuntu.exe . Open the reg file with whatever the text editor you like and edit to replace the ubuntu with the subitem name. Then save and import the edited reg file into reg database.