Catch lowercase alphabet character key code

[sittaendah]

Case:

I am using a custom CellTemplate where I put some modifications on handleKeyDown. I want to take general inputs (like alphanumeric, symbols), basically characters we usually type on an Excel/gsheet cell.

I notice that ReactGrid always take the capital form for each letter I type when I am on an active selected cell (just right before it goes to edit mode). Ex: for both A and a, I got 65 on handleKeyDown. I checked on keyCodes.ts on the lib repo, there only listed the ASCII codes for capital letters.

Expectation:

Able to differentiate uppercase and lowercase alphabet characters on handleKeyDown

Note I'd like to recommend adding additional key codes on the constants. Also welcome for any workaround I can try in the meantime :)