Visual differentiation of additions in anastylosis through shade: contrast as a tool for emphasizing authenticity

The aim of the study is to verify whether the choice of color for materials used in the reconstruction of stone objects affects the perception of authenticity among non-expert viewers, and it was conducted in a museum within a specially prepared space featuring a dedicated research box. The research examines how audiences perceive incomplete objects, their aesthetic preferences regarding different levels of contrast, and their ability to distinguish between original and reconstructed elements. It is assumed that different color variants influence not only visual evaluation but also visitor behavior, including movement around the object and frequency of physical interaction. The study seeks to support more informed design decisions in heritage reintegration processes and deepen understanding of how authenticity is perceived by non-professional audiences.The study was conducted in a museum within a specially designed black box environment that minimized external distractions while replicating typical exhibition conditions. A mobile eye tracker (Tobii Pro Glasses 3) was used alongside luminance and illuminance measurement devices, with standardized lighting conditions (approx. 300 lx and two color temperature variants). The experimental object was a stylized column with interchangeable elements in different color variants, enabling analysis of contrast perception between original and reconstructed parts. The collected data were manually mapped and processed using Tobii Pro Lab software, while survey data were transcribed from questionnaires and supplemented with information indicated by participants in the scene camera recordings from the eye tracker.