When you tap in a field labelled "latin" and "verbatim" you should see a keyboard in lowercase mode. When you tap in one labelled "none", "latin-prose", or "latin-name" you should see a keyboard in uppercase mode. Eventually there will be other differences as well (in word suggestions, for example) but for now, inputmode is just controlling auto capitalization

The special inputmode "digit" for the input field will allow the keyboard to enter digits(0-9) only.

Besides, the special inputmode "numeric" for the input field will allow the keyboard to enter 0-9, +, -, comma, dot.

none:
latin:
verbatim:
latin-prose:
latin-name:
none:
latin:
verbatim:
latin-prose:
latin-name:
number field with digits:
text fields with digits:
password fields with digits:
textarea with digits:
number field with numeric:
text fields with numeric:
password fields with numeric:
textarea with numeric: