Choose File > Import Palette, then select any of these palette formats:
Dottie Simple Color Palette (.color-palette)
ColorChip (.colorchip)—add this extension to a classic ColorChip text palette before importing it
GIMP (.gpl)
JASC / PaintShop Pro or Windows RIFF (.pal)—the two unrelated formats sharing this extension are told apart automatically
Lospec HEX (.hex)
Paint.NET (.txt)
Adobe Swatch Exchange (.ase)
Photoshop swatches (.aco)
Photoshop colour table (.act)—also exported by Aseprite
Apple colour list (.clr)
PNG palette image (.png)
Dottie preserves the colour order and saves the result as a custom palette. A PNG is used only as a source of colours: its image, size, and layout are discarded. Dottie scans from the top-left across each row, keeping every distinct non-transparent colour where it first appears.
A palette can contain up to 256 colours. Import stops with an explanation if a file exceeds that limit or does not match the format implied by its filename extension.
Dottie registers the lospec-palette:// link scheme used by lospec.com, home of thousands of community pixel-art palettes:
Browse to any palette on the Lospec palette list.
Under Download, choose the app/URL option (“Open in App”).
Dottie opens, saves the palette, and makes it current—with a transparent colour appended and the first, second, and last colours preset as primary, secondary, and eraser.
Custom palettes are stored as .color-palette files—small JSON documents holding the palette name and colours. In the palette switcher, click the magnifying-glass button to reveal a palette’s file in the Finder; give the file to someone else and they can choose File > Import Palette to add it to their copy of Dottie. Because Dottie is sandboxed, its palette folder lives inside the app’s container, so use the magnifying-glass button to reveal it rather than typing a path.