Ungrouped Functions - Most of the
Filters functions can be found here, along with various internal features
that don't otherwise fit into another category.
Gimp
These functions provide a programmatic interface to the basic internal
features of the GIMP such as the tools in the Toolbox, paths, patterns,
gradients, and the Procedural Database (PDB) which provides information
about all other functions that can be accessed with GIMP Perl.
Gimp Image
Functions in this category provide access to Image (aka Canvas) information
such as width, size, image mode, and so forth.
Gimp Layer
Layer functions provide access to features related to Layers.
Gimp Channel
Channel functions provide access to features related to Channels, both the
Red/Green/Blue defaults and any user defined channels.
Gimp Drawable
A drawable is an individual unit of the canvas, such as the visible layer,
its layer mask or it's thumbnail.
Perl Fu
These are functions specific to working with Perl Fu, the set of other GIMP
Perl scripts available to your script.
Plug In
Plug-In functions are features provided by other plug-ins, normally C-based
plug-ins but also Script-Fu plug-ins.
Extension
GIMP has an extensible core and functions accessible in this category are
related to those extensions. Most web developers probably won't need
these, but it's possible.
File
These functions provide access to file managment, including opening and
closing various image types.
