1) Source Images
Drag and drop images
Extract mode
Uses perceptual color distance, smooth alpha falloff, optional flood from edges (for solid backdrops), and defringe to strip leftover background tint on anti-aliased edges. Pick the background color when you can.
2) Sprite Library
Drag a sprite into a grid cell
Import grid sprite sheet
Frames are read left-to-right, then next row.
How to measure frames
Frame size (px)
Grid
Spacing & offset
Gaps sit between cells. Origin is where the grid starts (top-left).
No sprites yet. Extract with rectangle or lasso, then Add Selection.
3) Build Sheet
Rows are letters, columns are numbers
Grid fill, stretch, pixel align & more — use Menu in this section’s header.
Selected cell — size & color
Pick a placed cell first—
Mirror
Tip: Fit + Center scales inside padding so sprites are not glued to cell edges—use nudge mode to shift by 1px. Use stretch only when you want to fill the cell.
4) Animation Preview
Build frame sequence from sheet cells
No frames selected