`colors`

Named colors: the full CSS Color Module Level 3 / X11 “extended color keywords” list (https://www.w3.org/TR/css-color-3/#svg-color) plus REBECCAPURPLE (Level 4), as Color constants, so Theme(mark_color=CORNFLOWERBLUE) works instead of Theme(mark_color=Color(100, 149, 237)).

The constants themselves live in canvas.named_colors (moved there in canvas_mojo v0.18.0, when another consumer wanted the list). This module re-exports them so colors have a home inside dataviz, like the other specialist vocabulary (colormaps, palettes, markers): the package root keeps them out of from dataviz import ..., and from dataviz.core.colors import RED is the import the docs, cookbook recipes and Example: docstrings use.

Names and values are unchanged by the move: all 148 constants match the previous list exactly, name for name and value for value.