How to clear tables second value?

So I have this table, and I want to change all the 0's to 1's, How would I go about this?

colors = {
	{"Gray",0},
	{"Cyan",0},
	{"Brown",0},
	{"Green",0},
	{"Pink",0},
	{"Peach",0},
	{"Blue",0},
	{"Purple",0},
	{"Red",0},
	{"Yellow",0},
}

You can iterate through a table with a for loop.

Since your table contains tables, you will want to do:

for i,inTable in pairs(colors) do
	inTable[2]=1
end