Outline

app.command.Outline {
  ui=true,
  channels=FilterChannels...,
  place='outside',
  matrix='circle',
  color=app.fgColor,
  bgColor=Color(),
  tiledMode='none'
}

• ui: Show the dialog on the screen, true by default.
• channels: A combination of FilterChannels with bitwise OR (|) operator. The default value depends on the active sprite color mode:
  • RGBA: FilterChannels.RGBA
  • Grayscale: FilterChannels.GRAYA
  • Indexed: FilterChannels.INDEX
• place: 'inside' or 'outside'
• matrix: 'circle', 'square', 'horizontal', or 'vertical'
• color: The color of the outline
• bgColor: The color of the background (the transparent color by default on transparent layers, or the first pixel at the top-left corner in background layer)
• tiledMode: 'none', 'x', 'y', 'both'. By default it's 'none' if there is no UI, or it's equal to app.preferences.document(app.sprite).tiled.mode when ui is true.