View Menu
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View menu contains:
Grid
Show/hide grid on current board
Accuracy
Set the steps of the numbers on lines in current board.
Set the scale of current board.
Zoom in
Increase the scale.
Zoom out
Decrease the scale.
Default scale
Set scale to 20 and step to 1.
Change theme
Change theme of the entire program.
The theme will not be saved when the program terminated.