Unable to cast Color3 to token?

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#1

I am making a Grass Color Setting where the player uses arrows to move back and forth through the table.

Code:(All help an advice is appreciated)

--<Tables & Dictionaries>--
local GrassColors = {
	Color3.fromRGB(75, 100, 41),
	Color3.fromRGB(50, 66, 29),
	Color3.fromRGB(50, 96, 37),
	Color3.fromRGB(89, 95, 47)
}

--<Scripts>--

--Grass Colors
local nextBtn = GrassColor.next
local backBtn = GrassColor.back
local TextLabel = GrassColor.TextLabel

local currcolor = 1
local max = #GrassColors
local min = 1
local Terrain = workspace.Terrain

nextBtn.MouseButton1Click:Connect(function()
	if currcolor < max and currcolor >= min then
		currcolor += 1
		Terrain:SetMaterialColor(GrassColors[currcolor])
		TextLabel.Text = "Color "..tostring(currcolor)
	end
end)

backBtn.MouseButton1Click:Connect(function()
	if currcolor < min and currcolor <= max then
		currcolor -= 1
		Terrain:SetMaterialColor(GrassColors[currcolor])
		TextLabel.Text = "Color "..tostring(currcolor)
	end
end)
#2

switch the backBtn.MouseButton1Click Event with this:

backBtn.MouseButton1Click:Connect(function()
	if currcolor > min and currcolor <= max then
		currcolor -= 1
		Terrain:SetMaterialColor(GrassColors[currcolor])
		TextLabel.Text = "Color "..tostring(currcolor)
	end
end)
#3

Ive already fixed that i saw it right after i posted but thanks

#4

Someone already answered but i think they deleted it i forgot to state the Material in the first parameter like so:

Terrain:SetMaterialColor(Enum.Material.Grass, GrassColors[currcolor])