Namespace: go.std.image.color.palette

v1.0

Contents

• Summary
• Index
• Constants
• Variables
• Functions, Macros, and Special Forms
• Types

Summary

Provides a low-level interface to the image/color/palette package.

Package palette provides standard color palettes.

Index

• Plan9
• WebSafe

Legend

Constant Variable Function Macro Special form Type GoVar Receiver/Method

Constants

Constants are variables with :const true in their metadata. Joker currently does not recognize them as special; as such, it allows redefining them or their values.

(None.)

Variables

• Plan9

  Var v1.0

  Plan9 is a 256-color palette that partitions the 24-bit RGB space
  into 4×4×4 subdivision, with 4 shades in each subcube. Compared to the
  WebSafe, the idea is to reduce the color resolution by dicing the
  color cube into fewer cells, and to use the extra space to increase the
  intensity resolution. This results in 16 gray shades (4 gray subcubes with
  4 samples in each), 13 shades of each primary and secondary color (3
  subcubes with 4 samples plus black) and a reasonable selection of colors
  covering the rest of the color cube. The advantage is better representation
  of continuous tones.
  
  This palette was used in the Plan 9 Operating System, described at
  https://9p.io/magic/man2html/6/color
  

• WebSafe

  Var v1.0

  WebSafe is a 216-color palette that was popularized by early versions
  of Netscape Navigator. It is also known as the Netscape Color Cube.
  
  See https://en.wikipedia.org/wiki/Web_colors#Web-safe_colors for details.
  

Functions, Macros, and Special Forms

(None.)

Types

(None.)