Currently the user must actually click on the "Roll" button or tab over and press ENTER once the "Roll" button is highlighted. It would be nice to be typing inside the input field and simply press ENTER once finished typing - no need to use the mouse and click "Roll" and no need to tab over to the "Roll" button.

When clicking "Submit" some nonograms show "Incorrect" when they are in fact "Correct". For example, when row 2 (out of rows 0-3) column 1 (out of columns 0-3) is toggled black and row 2 value is "1" and column 1 value is "1", clicking "Submit" yields an "Incorrect" response when it should be "Correct"

There should be a 'Clear' button (maybe towards the top of the form) that resets all user-filled data in the form.

DnD tab currently only has a table layout of various buttons and inputs and a Log section. While the Log section has functionality, none of the buttons and inputs do. Javascript needs to be added to facilitate this functionality.

There should be a button to the left of the legend (e.g. an arrow) that, when clicked, expands/closes the legend content. The button would be to the left of a "Legend" title, which would also need to be added.