Crosy Dither comparison: original teaching studies
Crosy Editorial Team

Inputs: two original 480 x 320 PNGs, a smooth teal gradient and four exact flat color bands.
Charts: 48 x 32 cells, Maximum colors 4, full rectangular crop, neutral adjustments, no exclusions, no manual edits and no Clean.
Within each pair, only Dither changes: Off versus On (Floyd-Steinberg). All 1,536 cells are Crosses; there is no Backstitch.

Native .crosy files include the exact source PNG and applied conversion settings. Open through Open project in the editor; keep a backup of existing work first.
PDFs have three pages: overview, chart, key. A4 landscape, Fixed 4 mm chart cells. This is reading scale, not fabric scale. SVG and CSV contain the same chart and cell identities.
CSV coordinates are one-based from the top left. An isolated cell has no same-color immediate left/right/up/down neighbor. Diagonals do not count. This is a board diagnostic, not a quality, time or thread-usage estimate.

Gradient: Off has 0 isolated cells; On has 379; 574 of 1,536 positions change color. Both use the same 4 colors.
Flat bands: Off and On both have 0 isolated cells; 0 positions change. Each of the 4 colors has 384 Crosses.
Screen colors estimate thread appearance. Physical printing/stitching, other-app import and real-world outcomes were not tested.

You may use and adapt these original teaching inputs and example patterns. DMC names and trademarks belong to their owners.
Supplied learning files do not change export entitlements for your own projects.
https://crosy.app/guides/cross-stitch-dithering