Sensitivity decreases for longer (redder) and shorter (bluer) wavelengths. Other variations include a redder or yellower pigment with the occasional purple-brown color. Asteroids become darker and redder with age due to space weathering. This would result from brighter, redder stars dominating the stellar populations of lenticulars. This indicates a very different, and quite redder, spectrum, indicating a significantly darker surface. Redder in the surface and denser hardpan than associated Madera soil. For example, male figures are shown with darker or redder skin than female figures. The sky continues to become redder and the air hotter. In general, fruit becomes sweeter, less green (typically "redder"), and softer as it ripens. They are redder in hue than the other asteroids and have a very low albedo. It manifests as a boil, which gets progressively redder and more inflamed. The wavelength of redshifted light is longer, appearing redder than the source. Many vine-ripened tomatoes are a bit redder. Saturn's irregulars are slightly redder than those of Jupiter. Filters are applied to block shorter wavelengths, thereby only using the longer, "redder" wavelengths.