R: Create a color checker chart

color_chart {ggspectra} | R Documentation

## Create a color checker chart

### Description

Color-checker-chart ggplot labelled with color names or with indexes of the colors in the vector passed as first argument.

### Usage

    color_chart(colors = grDevices::colors(), ncol = NULL, use.names = NULL,
      text.size = 2, text.color = NULL, grid.color = "white")

### Arguments

`colors` | character A vector of color definitions.
`ncol` | integer Number of column in the checker grid.
`use.names` | logical Force use of names or indexes.
`text.size` | numeric Size of the text labels drawn on each color tile.
`text.color` | character Color definition, used for text on tiles.
`grid.color` | character Color definition, used for grid lines between tiles.

### Note

Default `text.color` uses `black_or_white()` to ensure enough contrast. Default for `use.names` depends on number of columns in the grid, indexes are used when columns are seven or more.

### Examples

    color_chart()
    color_chart(grep("dark", colors(), value = TRUE), text.size = 3.5)

[Package ggspectra version 0.2.3 Index]