Global options

Global options configure the general rendering pipeline or modify the image as a whole. Global options can appear anywhere in the rendering string, however they will not be applied to the currently selected layer.

Format options

Format options control the output properties of the rendered image.

Option
`fmt`	Configure the output image format
`qlt`	Select output image quality
`dpi`	Configure the output image DPI resolution
`as`	Select the output image colorspace
`icc`	Provide the output image ICC profile for supported colorspaces

Image options

Global Image options modify the canvas as a whole.

Option
`wid`	Configure the main canvas width
`hei`	Configure the main canvas height
`bgc`	Set canvas background color
`flattencolor`	Specific to `ai3-flatten` output image format option, allows to specify the overall foreground image color.

Sizing options

Sizing options control the output image dimensions and allow to scale, resize, or crop images independently of layers as a post-processing step.

Option
`rscale`	Scales the resulting output image by a scaling factor.
`rwid`	Scales the output image to match the requested width dimensions.
`rhei`	Scales the output image to match the requested height dimensions.
`rpos`	Indicates the desired cropping rectangle position.
`rsize`	Indicates the design cropping rectangle size.