get("#348") -- rgb and bright
get("#137") -- split
--get("#175") -- tableToString

get("#394") -- Battery Symbol Finder (optimized)

if x then
  total, sum = 0, 0
  for pix, count in pairs(innerPixels) do
    b = bright(rgb(pix))
    if b < 0.5 then
      sum = sum+count
    end
    total = total+count
  end
  sum = sum/total
  --return "Battery found. innerPixels: "..tableToString(innerPixels)
  print("Total: "..sum)
  return sum >= 0.19 and "Battery Charging" or "Battery Not Charging"
end

Began life as a copy of #391

Simple but seems to work