Missing mark properties

[espears4sq]

In vega, mark types have properties, such as binSpacing which is a property of the Bar mark type. For example, it's very standard when plotting a histogram to have binSpacing set to 0, like this:

{
  "data": {"url": "data/movies.json"},
  "mark": {"type": "bar", "binSpacing": 0},
  "encoding": {
    "x": {
      "bin": {"maxbins": 10},
      "field": "IMDB_Rating",
      "type": "quantitative"
    },
    "y": {
      "aggregate": "count",
      "type": "quantitative"
    }
  }
}

But currently it does not seem possibly in vegas to supply any mark properties, or else this is undocumented.

[oshikiri]

There are available mark configs.

Vegas/core/src/main/scala/vegas/DSL/ConfigDSL.scala

Lines 51 to 63 in d1941b6

	def configMark(filled: OptArg[Boolean] = NoArg, color: OptArg[String] = NoArg, fill: OptArg[String] = NoArg,
	stroke: OptArg[String] = NoArg, opacity: OptArg[Double] = NoArg, fillOpacity: OptArg[Double] = NoArg,
	strokeOpacity: OptArg[Double] = NoArg, strokeWidth: OptArg[Double] = NoArg, strokeDash: OptArg[List[Double]] = NoArg,
	strokeDashOffset: OptArg[Double] = NoArg, stacked: OptArg[StackOffset] = NoArg, orient: OptArg[Orient] = NoArg,
	interpolate: OptArg[Interpolate] = NoArg, tension: OptArg[Double] = NoArg, lineSize: OptArg[Double] = NoArg,
	ruleSize: OptArg[Double] = NoArg, barSize: OptArg[Double] = NoArg, barThinSize: OptArg[Double] = NoArg,
	shape: OptArg[Shape] = NoArg, customShape: OptArg[String] = NoArg, size: OptArg[Double] = NoArg, tickSize: OptArg[Double] = NoArg,
	tickThickness: OptArg[Double] = NoArg, align: OptArg[HorizontalAlign] = NoArg, angle: OptArg[Double] = NoArg,
	baseline: OptArg[VerticalAlign] = NoArg, dx: OptArg[Double] = NoArg, dy: OptArg[Double] = NoArg,
	radius: OptArg[Double] = NoArg, theta: OptArg[Double] = NoArg, font: OptArg[String] = NoArg,
	fontSize: OptArg[Double] = NoArg, fontStyle: OptArg[FontStyle] = NoArg, fontWeight: OptArg[FontWeight] = NoArg,
	format: OptArg[String] = NoArg, shortTimeLabels: OptArg[Boolean] = NoArg, text: OptArg[String] = NoArg,
	applyColorToBackground: OptArg[Boolean] = NoArg) = {

Unfortunately, some of these configs are renamed.

config.mark.barBinSpacing/barThinSize/barSize => config.bar.binSpacing/continuousBandSize/discreteBandSize

And, barBinSpacing does not seem to be available in vega-lite v1.2.0 which Vegas currently depends on. See https://github.com/vega/vega-lite/blob/v1.2.0/site/docs/config.md#bar-config