Go to GitHub.com and search for Mantra-Color-Separation . Look for the repository by user "neilvt" or "screenprinting-dev" . The raw Mantra_Color_Separation.jsx file is available for download via "Right Click -> Save As."
Open your design and ensure the layer is named correctly (often "layer 0") and set to a high resolution (e.g., 300–600 DPI). Run the script from the Photoshop menu. download mantra color separation script link
: Places registration marks with color labels for screen alignment. Go to GitHub