Doesn't seem right to me as I feel that it needs to be drawn on paper to create a direct link between you and the spirit, be in the flesh so to speak.
But.. has this worked for anyone? I'm just curious.
A hand-drawn sigil easily involves greater activation of the motor cortex and drastically richer sensory feedback.
If we subscribe to the Hermetic principles stated in the Kyballion, the All is the Mind...
And if we accept the modern assumption that the mind is very strongly correlated with the brain...
Then it's only natural for us to automatically conclude that a greater activation of the nervous system would be associated with a more energetic sigil, because energy goes where attention goes.
Note that I borrow my personal beliefs on sigils from a mixture of Dion Fortune and Israel Regardie's opinions.
They emphasised that sigils are nothing more than visual representations of living ideas.
There are probably better models for sigils out there I'm unaware of, but yeah...
I don't personally create digital sigils, and don't know anyone who considers it better than a drawn sigil.
What's got you interested in this though?
Have you seen any advocates for this novelty?