2.21.59.3 set style fill

The `set style fill` command is used to set the style of boxes, histograms, candlesticks and filledcurves.

Syntax:

      set style fill {empty | solid {<density>} | pattern {<n>}}
                     {border {<linetype>} | noborder}

The default fillstyle is `empty`.

The `solid` option causes filling with a solid color, if the terminal supports that. The <density> parameter specifies the intensity of the fill color. At a <density> of 0.0, the box is empty, at <density> of 1.0, the inner area is of the same color as the current linetype. Some terminal types can vary the density continuously; others implement only a few levels of partial fill. If no <density> parameter is given, it defaults to 1.

The `pattern` option causes filling to be done with a fill pattern supplied by the terminal driver. The kind and number of available fill patterns depend on the terminal driver. If multiple datasets using filled boxes are plotted, the pattern cycles through all available pattern types, starting from pattern <n>, much as the line type cycles for multiple line plots.

The `empty` option causes filled boxes not to be filled. This is the default.

By default, border, the box is bounded by a solid line of the current linetype. `border <lt>` specifies that a border is to be drawn using linetype <lt>. `noborder` specifies that no bounding lines are drawn.