ConvolutionMatrix

app.command.ConvolutionMatrix {
  ui=true,
  channels=FilterChannels...,
  tiledMode=none,
  fromResource=string
}

ui: Shows the dialog on the screen, true by default. Set to false to apply the convolution matrix filter automatically without asking to the user for the change.
channels: A combination of FilterChannels with bitwise OR (|) operator. By default it is equal to: FilterChannels.RED | FilterChannels.GREEN | FilterChannels.BLUE | FilterChannels.GRAY.
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.
fromResource: Name of pre-defined convolution matrix.

Note: In future versions this function should support creating customized convolution matrices.