INK. Specs for your Photoshop layers
INK is a Photoshop Plugin that helps Designers to generate precise UI specs. Fonts, shapes, measurements, effects and so on. Started and maintained as a side project, the plugin bridges the gap between design and front-end execution. INK has now over 75.000 downloads and it’s considered one of the best Photoshop plugins on the web.

INK has two main features: Layers and selection size measurement, and Layer specs generation.
(To learn more about Water4:

INK is an open source project: Feel free to have a look at the code.

To get started with INK, I wrote a short article on Medium