r.blend
r.blend.combine - Blends color components of two raster maps by a given ratio and export into a unique raster.
Raster (r.*)
ParameterRaster|first|Name of first raster map for blending|False
ParameterRaster|second|Name of second raster map for blending|False
ParameterNumber|percent|Percentage weight of first map for color blending|0.0|100.0|50.0|True
Hardcoded|-c
OutputRaster|output|Blended