[Bug]: Can access colors when overrite highlight groups

[nihilc]

Tool Version

commit a69071f

Describe the bug

when trying to override hlgroups in the setup function it ignores the colors parameter and can't access the scheme colors

require("oxide").setup({ 
  -- Override highlight groups
  on_highlights = function(highlights, colors)
    highlights.Comment = { fg = colors.green, italic = true }
  end,
})

Expected behavior

if i put the color manually it works, it just can access the colors parameter

require("oxide").setup({ 
  -- Override highlight groups
  on_highlights = function(highlights, colors)
    highlights.Comment = { fg = "#5bb661", italic = true }
  end,
})

Screenshots