A screening arrangement for adjusting the light intake of a window opening to be screened and comprising: an extensible screen having a predefined length between a first end portion and a second end portion, the extensible screen being made from a material with variable transparency in at least a first direction such that when traction is applied to the material in said first direction, the permeability of the material is increased, a roller shaft connected to drive means, the first end portion of the extensible screen being connected to the roller shaft, the extensible screen being wound on the roller shaft in a non-screening position and configured to be unwound from the roller shaft under rotation of the roller shaft in an unwinding direction, to a deployed position at a well-defined end stop, corresponding to a first screening position, in which the extensible screen is in a first stretched state, and traction means configured to apply traction on the extensible screen to bring the extensible screen to a second screening position, in which the extensible screen is in a second stretched state and the permeability of the material is increased relative to the permeability in the first stretched state, characterized in that the traction means comprises at least one traction cord having a first end in connection with the roller shaft and a second end in connection with the second end portion of the extensible screen, and which is configured to apply a traction force (Ft) on the extensible screen when the extensible screen is stretched from said first stretched state in the first screening position to said second stretched state in the second screening position by continued rotation of the roller shaft in the unwinding direction after the extensible screen has been fully deployed from the roller shaft, and that a spring device is provided to provide pre-tensioning of the at least one traction cord. an extensible screen having a predefined length between a first end portion and a second end portion, the extensible screen being made from a material with variable transparency in at least a first direction such that when traction is applied to the material in said first direction, the permeability of the material is increased, a roller shaft connected to drive means, the first end portion of the extensible screen being connected to the roller shaft, the extensible screen being wound on the roller shaft in a non-screening position and configured to be unwound from the roller shaft under rotation of the roller shaft in an unwinding direction, to a deployed position at a well-defined end stop, corresponding to a first screening position, in which the extensible screen is in a first stretched state, and traction means configured to apply traction on the extensible screen to bring the extensible screen to a second screening position, in which the extensible screen is in a second stretched state and the permeability of the material is increased relative to the permeability in the first stretched state, characterized in that the traction means comprises at least one traction cord having a first end in connection with the roller shaft and a second end in connection with the second end portion of the extensible screen, and which is configured to apply a traction force (Ft) on the extensible screen when the extensible screen is stretched from said first stretched state in the first screening position to said second stretched state in the second screening position by continued rotation of the roller shaft in the unwinding direction after the extensible screen has been fully deployed from the roller shaft, and that a spring device is provided to provide pre-tensioning of the at least one traction cord.