Error when passing color options to an input widget

[tesselode]

Specifying colors when creating an input widget results in an error.

This should reproduce the issue:

local input = {text = ""}

function love.update(dt)
    suit.layout:reset(100,100)

    suit.Input(input, {color = {
      normal = {bg = { 255, 0, 0}, fg = {188,188,188}},
    }}, suit.layout:row(200,30))
end

The error I get:

Error: suit/theme.lua:115: bad argument #3 to 'setColor' (number expected, got nil)
stack traceback:
    [C]: in function 'setColor'
    suit/theme.lua:115: in function 'f'
    suit/core.lua:158: in function <suit/core.lua:157>
    suit/core.lua:165: in function 'draw'
    main.lua:42: in function 'draw'
    [string "boot.lua"]:467: in function <[string "boot.lua"]:435>
    [C]: in function 'xpcall'