app.preferences

local value = app.preferences.section.option
app.preferences.section.option = newValue

Gets or sets the given preference option in the given section. You can find valid section and option names in the pref.xml file.

app.preferences.tool()

local toolPref = app.preferences.tool(tool)
local value = toolPref.section.option
toolPref.section.option = newValue

Returns the preferences of the given tool.

app.preferences.document()

local docPref = app.preferences.document(sprite)
local value = docPref.section.option
docPref.section.option = newValue

Returns the preferences of the given sprite.