original: thirdly , for some color blind people , color can only be distinguished if there is a sufficient " mass " of color : thin lines might appear black while a thicker line of the same color can be perceived as having color .
simplifications: for a portion of color blind people , color can only be distinguished if there is enough mass of the color , for instance , a thin line may appear black while a thicker line of the same color can be distinguished as a color . thirdly , for some color blind people , color can only be distinguished if there is a sufficient " mass " of color : thin lines might appear black while a thicker line of the same color can be perceived as having color . thirdly , for some color blind people , color can only be distinguished if there is a sufficient " mass " of color : thin lines might appear black while a thicker line of the same color can be perceived as having color . some color blind people can see certain colors , but only if there is a significant amount of it . some color blind people can only tell the difference between colors if there is a large enough block of color : a thin line might look black while a thicker line of the same color might look like it has color . thirdly , for some color blind people , color can only be distinguished if there is a sufficient " mass " of color : thin lines might appear black while a thicker line of the same color can be perceived as having color . third , for some color blind people , color can only be seen if there is enough of it : thin lines might appear black while a thicker line of the same color can be seen in color . thirdly , for some color blind people , color can only be seen if there is enough " mass " of color : thin lines might appear black while a thicker line of the same color can be perceived as having color .