# Quad Curve Blending Easily blend two separate quad files with percetage curve from 5 control points. ![[Curve Blending Screen.png]] Use the separate Load Curve 1 and 2 buttons to show a standard open dialog window to chose the two quad files you want to blend together (opening the curves with drag and drop is disabled for the blending tool). Then use the vertical sliders to set the percentage of each curve for that tonal range and then blending tool will interpolate two 256-step curves with the percentage from each step. That percetage is then multiplied to the coresponding ink values for the two curves, and added together to create the file quad curve file.