In the western textile industry, the core principles of aesthetic and technical object quality are largely tied to the unchanging nature of the product surface over time. Material change, like sun-faded furnishing textiles, is commonly perceived as damage or degradation. Known as 'cosmetic obsolescence', this phenomenon contributes to premature disposal and unsus-tainably short product lifespans (Lilley & al., 2016). However, research demonstrates that a carefully orchestrated change on the surface of a material has the potential to be leveraged to increase the lifespan of products by creating and maintaining physical and emotional durability (Chapman, 2005), as well as to globally reduce the environmental impact of a product (Kumar & al., 2023). From this perspective, through a design research approach, this article examines how taking into account the reactions of natural dyes to long-term exposure to natural light upstream in the design of textile products can propose a new definition of color resistance and open a new path for design with biocolours. In this idea, the research has realized a lightfast-ness natural color database created as a tool for textile designers. This "chromo-chronological" colour chart and creative method is made for designing textiles capable of negotiating our per-ception of wear and tear by making patterns appear or disappear over the time of use.