The embeddable expression engine fork for Kritahttps://invent.kde.org/graphics/kseexpr/
This is the fork of Disney Animation's SeExpr expression
library (https://wdas.github.io/SeExpr), that is used in Krita.
SeExpr is an embeddable, arithmetic expression language
that enables flexible artistic control and customization
in creating computer graphics images. Example uses
include procedural geometry synthesis, image synthesis,
simulation control, crowd animation, and geometry deformation.