Color Utilities

  -- ImGui.ColorConvertRGBtoHSV(...)
  -- Parameters: float (r), float (g), float (b)
  -- Returns: float (h), float (s), float (v)
  h, s, v = ImGui.ColorConvertRGBtoHSV(1, 0, 0.5)

  -- ImGui.ColorConvertHSVtoRGB(...)
  -- Parameters: float (h), float (s), float (v)
  -- Returns: float (r), float (g), float (b)
  r, g, b = ImGui.ColorConvertHSVtoRGB(1, 0, 0.5)

  -- ImGui.ColorConvertU32ToFloat4(...)
  -- Parameters: int (color_u32)
  -- Returns: float array (color_f4={r,g,b,a})
  color_f4 = ImGui.ColorConvertU32ToFloat4(0xF69420FF)

  -- ImGui.ColorConvertFloat4ToU32(...)
  -- Parameters: float array (color_f4={r,g,b,a})
  -- Returns: int (color_u32)
  -- NOTE: this function is fundamentally
  color_u32 = ImGui.ColorConvertFloat4ToU32({0.4, 0.2, 0, 1})