Apex-chart demo code

type: custom:apexcharts-card
experimental:
  color_threshold: true
  brush: true
graph_span: 12h
span:
  start: day
brush:
  selection_span: 10min
header:
  show: true
  title: ruimtetemperatuur
  show_states: true
  colorize_states: true
series:
  - entity: sensor.otgw_room_temperature
    yaxis_id: first
    name: vandaag
    color: rgb(230.230.230)
    show:
      extremas: true
    stroke_width: 1
    type: area
    extend_to: now
    color_threshold:
      - value: 20
        color: purple
      - value: 21
        color: e07614
      - value: 25
        color: edb900
  - entity: sensor.otgw_room_temperature
    yaxis_id: first
    name: gisteren
    offset: '-1d'
    stroke_width: 2
    color: orange