Not the author, but they look like they’re from Balsamiq. I haven’t used it for a while, but I remember Balsamiq being a great tool, especially for quick low-f

Not the author, but they look like they’re from Balsamiq. I haven’t used it for a while, but I remember Balsamiq being a great tool, especially for quick low-fi UI wireframing. https://balsamiq.com https://balsamiq.com