For media files, the first byte of the file indicates what type it is:
0x11: mono font v1.0x21: image v1.0x31: audio v1.
ROM #
Running firefly_cli export creates a single-file distribution for an app’s ROM. This ROM can be imported back using firefly_cli import.
This file is a regular zip archive with zstd compression. Because zstd compression support is added into the zip specification only in 2020, your archive program won’t be able to open it.
Image #
…
Audio #
…
Font #
…
Metadata #
…
Short metadata #
…