Greetings, Jean!
I wanted to ask you in the menu 'Change Case' for clarity to sign the actions as well, what will be the result of the conversion, especially 'SaRcAsM' is already there and it is clearly visible.
To give you an example:
lower case (all letters converted to lower case)
UPPER CASE (all letters converted to capitals)
Title Case (first letter of each word converted to capital)
Sentence. Case (first letter of each sentence or line converted to capital)
tOGGLE CASE (or Reverse case, each letter converted to its opposite case)
rAndOM (guess what)
What do you think about that?