util: add more predefined color codes to inspect.colors

This adds most commonly used ANSI color codes to
`util.inspect.colors`.

PR-URL: https://github.com/nodejs/node/pull/30659
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>

1 files changed, 63 insertions, 4 deletions

diff --git a/doc/api/util.md b/doc/api/util.md
index ac23f138ad..88e2f34b7c 100644
--- a/doc/api/util.md
+++ b/doc/api/util.md
@@ -678,13 +678,72 @@ The default styles and associated colors are:
 * `symbol`: `green`
 * `undefined`: `grey`
 
-The predefined color codes are: `white`, `grey`, `black`, `blue`, `cyan`,
-`green`, `magenta`, `red` and `yellow`. There are also `bold`, `italic`,
-`underline` and `inverse` codes.
-
 Color styling uses ANSI control codes that may not be supported on all
 terminals. To verify color support use [`tty.hasColors()`][].
 
+Predefined control codes are listed below (grouped as "Modifiers", "Foreground
+colors", and "Background colors").
+
+#### Modifiers
+
+Modifier support varies throughout different terminals. They will mostly be
+ignored, if not supported.
+
+* `reset` - Resets all (color) modifiers to their defaults
+* **bold** - Make text bold
+* _italic_ - Make text italic
+* <span style="border-bottom: 1px;">underline</span> - Make text underlined
+* ~~strikethrough~~ - Puts a horizontal line through the center of the text
+  (Alias: `strikeThrough`, `crossedout`, `crossedOut`)
+* `hidden` - Prints the text, but makes it invisible (Alias: conceal)
+* <span style="opacity: 0.5;">dim</span> - Decreased color intensity (Alias:
+  `faint`)
+* <span style="border-top: 1px">overlined</span> - Make text overlined
+* blink - Hides and shows the text in an interval
+* <span style="filter: invert(100%)">inverse</span> - Swap foreground and
+  background colors (Alias: `swapcolors`, `swapColors`)
+* <span style="border-bottom: 1px double;">doubleunderline</span> - Make text
+  double underlined (Alias: `doubleUnderline`)
+* <span style="border: 1px">framed</span> - Draw a frame around the text
+
+#### Foreground colors
+
+* `black`
+* `red`
+* `green`
+* `yellow`
+* `blue`
+* `magenta`
+* `cyan`
+* `white`
+* `gray` (alias: `grey`, `blackBright`)
+* `redBright`
+* `greenBright`
+* `yellowBright`
+* `blueBright`
+* `magentaBright`
+* `cyanBright`
+* `whiteBright`
+
+#### Background colors
+
+* `bgBlack`
+* `bgRed`
+* `bgGreen`
+* `bgYellow`
+* `bgBlue`
+* `bgMagenta`
+* `bgCyan`
+* `bgWhite`
+* `bgGray` (alias: `bgGrey`, `bgBlackBright`)
+* `bgRedBright`
+* `bgGreenBright`
+* `bgYellowBright`
+* `bgBlueBright`
+* `bgMagentaBright`
+* `bgCyanBright`
+* `bgWhiteBright`
+
 ### Custom inspection functions on Objects
 
 <!-- type=misc -->