'use background' shadow colour
 

how to change the shadow colour while i am working with use background to receive the shadow but the thing is i can change the shadow colour when i use all other material like lambert, blin etc. but when i change the shader to 'use background' the shadow colour is not changing. I want my shadow colour to be light brown because the seen which i am working has light brown shadow i want to match my 3d object with that did anybody tried out this or know how to work out with this pls reply to my thread