Heavy themes often tried to replace the default Nokia icons with custom iPhonesque bubbles. Light themes usually kept the stock Nokia icons but recolored them to dark grey or blue. Alternatively, some premium "Light" themes used a minimalist "Lines" icon set—thin black outlines over a white background.
Nokia’s S40 devices were pioneers in making personalization accessible. The simplicity of the .nth format allowed a massive community of creators to share thousands of designs, ensuring no two Nokia phones ever had to look the same. Even today, the "Light" theme remains a symbol of that era's functional, elegant design. nokia light.nth themes
file extension is a proprietary theme format used by Nokia Series 40 (S40) Heavy themes often tried to replace the default