Module color 

R color system — 657 named colors, hex parsing, color builtins.

The named color table matches R’s colors() output exactly, including all X11/CSS colors and the gray0–gray100 / grey0–grey100 series. Lookup is case-insensitive via binary search on lowercase names.

Structs

RColor

An RGBA color value. Alpha defaults to 255 (fully opaque).

Constants

DEFAULT_PALETTE

R’s default palette: c(“black”,“red”,“green3”,“blue”,“cyan”,“magenta”,“yellow”,“gray”)

NAMED_COLORS

All 657 R named colors, sorted alphabetically for binary search. Generated from R’s colors() output and col2rgb() values.

Statics

__BUILTIN_REG_BUILTIN_COLORS 🔒

__BUILTIN_REG_BUILTIN_RGB 🔒

__INTERP_REG_INTERP_COL2RGB 🔒

__INTERP_REG_INTERP_PALETTE 🔒

Functions

builtin_colors 🔒

Return a character vector of all 657 named color names.

builtin_rgb 🔒

Create hex color strings from RGB(A) values.

clamp_to_u8 🔒

Clamp a floating-point value to 0–255 and round to nearest u8.

default_palette

Returns the default palette as a Vec<RColor>.

get_double_vec 🔒

Extract a vector of f64 from an RValue, for use in rgb().

interp_col2rgb 🔒

Convert color specifications to RGB values.

interp_palette 🔒

Get or set the color palette.