When Gnonograms starts it is in "design" mode and displays the "design grid". This grid contains the solution to the puzzle.
In this mode you can:
Change the dimensions of the grid
Design your own puzzle by drawing on the design grid
Save a puzzle you designed
Load an existing puzzle
Load a partially finished puzzle saved earlier
Start the puzzle editor to enter clues directly or to enter the descriptive information about the puzzle that is displayed at the bottom of the window.
Import a suitable image file, converting it into a nonogram puzzle.
Let the computer generate a solvable puzzle (random pattern)
Switch to solving mode