Setting Up FTP Access to USB Drive
On the FireTV device search for ES File Explorer
Install ES File Explorer
Launch ES File Explorer
Scroll down the left navigation to the USB flash drive
Navigate in the right pane to any file > Long press the file > Select Copy
Navigate back to the root of the USB flash drive > Select Paste
When prompted, allow ES File Explorer access to the USB flash drive
Long press the copied file > Select Delete > Confirm deleting the file
Scroll up on left navigation and select Network > View on PC
Click the Settings button at the bottom
Click the Mount Path option and set the path to the root of the USB flash drive
Click the big Turn On button to start the FTP server
The IP address and port will display, by default anonymous access is enabled
Download FileZilla FTP client Download
Extract the downloaded .zip file
Launch FileZilla.exe
Enter the IP address and port (3721 by default) in the quick connect fields and press Enter to connect
If everything is setup correctly, a listing of folders on the USB flash drive should be displayed in the right pane
Customizing Artwork
With FTP access setup, artwork can be easily customized
NOTE: Image files must match the ROM file name exactly, IE artwork for "i12bretro Strikes Back (USA).zip" must be name "i12bretro Strikes Back (USA).png"
Download the artwork to be used ( EmuMovies and LaunchBox forums are great resources)
Launch FileZilla
Enter the IP address and port (3721 by default) in the quick connect fields and press Enter to connect
Navigate the USB flash drive in the right pane to the Covers or Screenshots directory > Find the folder for the system to modify
Drag/Drop files to copy into the right pane
Launch Dig and the updated artwork should appear, if it does not, back out of the system and reload it again
Installing Themes
Some of my favorite themes are Blast 16, Comic Book, Mega-PI USA, Unified Arkade, NES, Retroman UltimateVideo, Riivive, SNES Classic Official UI
NOTE: Not all themes support every system
Download the theme(s) to be installed Download
Launch FileZilla.exe
Enter the IP address and port (3721 by default) in the quick connect fields and press Enter to connect
Drag/Drop downloaded theme zip files into the right pane
Launch Dig and go to > Options > Themes > Install theme
Navigate to the root of the USB flash drive and select the theme .zip file to install
Click Confirm
Dig will extract the contents of the zip file and install the theme
To set the theme go to Options > Themes > Select theme and select it from the dropdown