Layer styles (.fstyle)

Use in the application

The Styles panel captures or applies a layer style and imports or exports libraries. Applying a style is undoable; editing the catalogue does not modify open documents. Built-in styles are not exported.

File structure

UTF-8 JSON with an explicit format tag and version. The current reader and writer use version 1. The example shows the library envelope; the full reference describes the complete value schemas.

presets holds named style objects, optional groups, fillOpacity, effects and Blend If ranges. Enabled and disabled effects remain editable: this is not a library of rendered thumbnails.

{
  "format": "focale-style-presets",
  "version": 1,
  "presets": [
    {
      "id": "style.user.example",
      "name": "Editorial shadow",
      "groupPath": [
        "Editorial"
      ],
      "style": {
        "fillOpacity": 0.8,
        "effects": [
          {
            "kind": "dropShadow",
            "enabled": true,
            "color": 4279383126,
            "opacity": 0.65,
            "angle": 120,
            "distance": 12,
            "spread": 0,
            "size": 9
          }
        ]
      }
    }
  ]
}

Validation and limits

Maximum: 16 MiB and 4,096 presets, with names and ids up to 4,096 UTF-16 code units and 32 group levels. Duplicate identities or malformed entries reject the whole import.

Photoshop interchange

ASL exchange keeps effects and blending options that Focale can reproduce. Embedded ASL pattern pixels are currently skipped; .fstyle retains the native editable representation.

Complete format references

Download the full Markdown specifications in English, including schemas, validation rules and compatibility details.

• Download style-presets.md