Abschattungsanordnung a vehicle roof

having Abschattungsanordnung a transparent roof part of a motor vehicle, comprising a sheet-like shade element which is movable between a Abschattungsstellung and a release position and a surface facing a vehicle interior bottom and surroundings of a vehicle facing top surface, said indirect lighting means (28, 28A, 28B) is provided, and the shading element includes a light effect material, which cooperates with the illumination device (28, 28A, 28B), wherein the indirect lighting means (28, 28A, 28B) illuminates the shade element from its top side and / or from its bottom, and wherein the light effect substance either by a phosphorescent and / or fluorescent material is formed, which is applied to the shading element on its underside and / or its top side, or is formed of phosphorescent and / or fluorescent yarns, or yarns of reflective g ebildet is or comprises a diffuser material.