This shot is part of the series about the design process of Pillow and it's inner workings.
This is the card-shaped dialog box that we use throughout the app to display. The left part of the shot demonstrates the grid of the specific dialog box as well as parts of the main grid which is used by other card-shaped dialogs. This grid in turn, is based on the main grid upon which the entire app is designed.

More info about Pillow at:

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