Axes Background Color

Mix.install([
  {:plotly_ex, "~> 0.3"},
  {:kino, "~> 0.18"}
])

Section

Each face of the 3D bounding box has its own background colour, set via layout.scene.xaxis.backgroundcolor (and y, z). Set showbackground: true to enable the coloured panels. gridcolor controls the grid lines on each face.

alias Plotly.{Figure, Scatter3d}

t = Enum.map(0..100, fn i -> i / 10 end)
x = Enum.map(t, &:math.cos/1)
y = Enum.map(t, &:math.sin/1)
z = t

Figure.new()
|> Figure.add_trace(Scatter3d.new(x: x, y: y, z: z, mode: "lines"))
|> Figure.update_layout(
  title: "3D Axes Background Color",
  scene: %{
    xaxis: %{backgroundcolor: "rgb(200, 200, 230)", showbackground: true, gridcolor: "white", zerolinecolor: "white"},
    yaxis: %{backgroundcolor: "rgb(230, 200, 230)", showbackground: true, gridcolor: "white", zerolinecolor: "white"},
    zaxis: %{backgroundcolor: "rgb(230, 230, 200)", showbackground: true, gridcolor: "white", zerolinecolor: "white"}
  }
)
|> Plotly.show()