Imports periph.io/x/periph/conn/physic periph.io/x/periph/conn/display periph.io/x/periph periph.io/x/periph/conn/spi/spireg periph.io/x/periph/host periph.io/x/periph/conn/spi periph.io/x/periph/devices/apa102 Standard library imports image/png errors image/gif flag fmt image image/jpeg io/ioutil log os path/filepath strconv strings time