Está la textura almacenando datos sin color?
This setting is only relevant when Linear color space is used, and controls whether sRGB->Linear
color space conversion is done when sampling the texture in shaders.
La mayoría de las "textures regulares" almacenan datos de color en el espacio de color sRGB, y para estas la flag debería configurarse a false.
Non-color textures are typically stored as linear values, and the GPU should not do any color space conversions.
This flag is set to true in this case. Unity marks various non-color textures (e.g. normal maps) as "linear" by default.
Legacy IMGUI textures should be set as linear too.
Esta flag corresponde a la opción "Bypass sRGB Sampling" en Advanced texture import settings.
See Also: Linear and Gamma rendering, PlayerSettings.colorSpace.