Hi,
About the concept/terminology "macro":
In 2021, according to the Gimp 3.x roadmap, the feature "Script recording and playback" has the status "No".
On the other hand, macro belongs also to the Script-Fu language.
In the basic library supplied with Gimp 2.10.28,
C:\Program Files\GIMP 2\share\gimp\2.0\scripts\script-fu.init defines some macros such as the iterator do with the constructor macro
referenced in the Revised4 Report on the Algorithmic Language Scheme (R4RS).
However TinyScheme is known to have a
very slow macro 
expansion.
Regards.
About the concept/terminology "macro":
In 2018, DebianFanatic Wrote:GIMP is "scriptable", and the term "macro" came to my mind
Ofnuts Wrote:recording (...) actions and replaying them
rich2005 Wrote:some sort of macro recording would be welcome
In 2021, according to the Gimp 3.x roadmap, the feature "Script recording and playback" has the status "No".
On the other hand, macro belongs also to the Script-Fu language.
In the basic library supplied with Gimp 2.10.28,
C:\Program Files\GIMP 2\share\gimp\2.0\scripts\script-fu.init defines some macros such as the iterator do with the constructor macro
referenced in the Revised4 Report on the Algorithmic Language Scheme (R4RS).
However TinyScheme is known to have a
very slow macro expansion.Regards.