This came at the suggestion of a pixel artist on Twitter, MortMort He asked me as "a Photoshop Extension Maker" if I could make some scripts for pixel art. I of course said sure why not...I almost regretted it. One of the things he and a lot of other pixelers asked for was a live preview panel like what can be seen in Pyxel Edit. They wanted to be able to work on their animation and see it live updated instead of having to stop and start their animation everytime.
For a while I thought this was impossible, but I found some hidden gem information and put it to use to create the very first version of Pixelmate. Pixelmate is the live preview panel, along with helpful scripts to speed up the tedious parts of pixel art creation
Pixelmate is still quite in development although it's in a decent state and available for purchase on Gumroad as well as you can still suggest features you'd like added either on the Polycount thread or on my Discord Channel.
Make sure to follow me on Twitter so you can stay up to date on when Pixelmate is updated
and also to let me know if you run into bugs/problems!
Photoshop CC 2015.0.0 has been repeatedly reported to not work with extensions
Newer versions of CC2015 have been reported to work fine. So make sure you are up to date.