テクスチャは色以外のデータを保存するか
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.
大抵の "regular textures" は色データを sRGB 色空間に格納し、このフラグを False に設定する必要があります。
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.
このフラグは Advanced texture import settings の "Bypass sRGB Sampling" オプションに対応します。
See Also: Linear and Gamma rendering, PlayerSettings.colorSpace.