Image Tool Only Supports DER-Based Hash Calculation.

[SKal-byte]

After following the steps below for the signing tool, the public key hash is calculated using the DER method. Please refer to the screenshot.
I followed the steps below:

python imgtool.py keygen -k ed25519_priv.pem -t ed25519

python imgtool.py getpub -k ed25519_priv.pem -e pem -o ed25519_pub.pem

python imgtool.py sign -k ed25519_priv.pem -v1.0.0 --header-size 32 --align 4 --slot-size 0x108000 --pad --sha 256 --public-key-format hash app.hex output_ed25519.hex

Could you please verify why the tool does not offer an option to select either the raw or DER method for hash calculation?.
In MCUboot, we want the hash to be calculated using the raw method, but the image tool currently provides only the DER method.