How to Color a players field of vision like Night Vision Goggles Minecraft 1.9

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Commands: \r
/scoreboard players set @a nightvision 4 {Inventory:[{id:minecraft:golden_sword,Slot:-106b,Damage:4s}]}\r
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/scoreboard players remove @a[score_nightvision_min=1] nightvision 1\r
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/effect @a[score_nightvision_min=2] minecraft:night_vision 20 1 true\r
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/effect @a[score_nightvision=1,score_nightvision_min=1] minecraft:night_vision 0 0\r
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