Common Attributes +
Old Color - set the color you want to swap.
New Color - set the color you want to swap
Import an SVG into the Assets Window.
Drag it in to the Viewport to create an SVG Shape.
Connect a Sub Mesh to the Deformer attribute of the SVG Shape.
On the Sub Mesh, switch to the Fill tab in the Attribute Editor.
Use the + button to add a Swap Color to the Fill Overrides attribute.
Set a value for Old Color that matches one in the SVG.
Set a value for New Color to swap Old Color to.