Firefox DevTools Theme

Name: Firefox DevTools Theme
Author: mNoWTF

Publisher: mNoWTFThemes in package: 2

A Firefox DevTools inspired theme.

Open in VS Code GitHub

Color themes

VS Code preview

Full workbench mockup using this variant's colors and tokenColors.

fetchUser.ts

index.ts

README.md

src

components

fetchUser.ts

User

tags

export interface User {
  id: string;
  name: string;
  role: "admin" | "member";
  tags: string[];
}

/**
 * Fetch user data by ID
 * @param id
 * @returns User object or null if ID is invalid
 */
export async function fetchUser(id: string): Promise<User | null> {
  if (!id) {
    return null;
  }

  const response = await fetch(`/api/users/${id}`, {
    method: "GET",
    headers: { Accept: "application/json" },
  });

  if (!response.ok) {
    throw new Error(`HTTP ${response.status}`);
  }

  return (await response.json()) as User;
}

function greet(user: User): string {
  // Simple greeting function that uses the user's name
  return `Hello, ${user.name}!`;
}

Problems1

Output

Debug Console

Terminal

Ports

~/my-project $ pnpm test
✓ fetchUser passed 12blk
✗Cannot find name 'user'. error
▲warning 412 readylocalhost
http://localhost:3000

WSL

1 1

main*

Copilot

Ln 5, Col 12

Spaces: 2

UTF-8

TypeScript

Firefox DevTools Dark

colors

Workbench UI color keys from the theme JSON colors map.

key	HEX	RGB	RGBA
activityBar.activeBorder
activityBar.background
activityBarBadge.background
badge.background
button.background
button.hoverBackground
debugToolBar.background
dropdown.background
editor.background
editor.foreground
editor.lineHighlightBackground
editor.selectionBackground
editor.wordHighlightBorder
editorBracketMatch.border
editorCursor.foreground
editorGroupHeader.tabsBackground
editorWidget.background
focusBorder
input.background
list.activeSelectionBackground
list.focusBackground
list.hoverBackground
list.inactiveSelectionBackground
panel.background
scrollbarSlider.background
sideBar.background
sideBarSectionHeader.background
sideBarTitle.foreground
statusBar.background
statusBar.debuggingBackground
statusBar.debuggingForeground
statusBar.foreground
tab.activeModifiedBorder
tab.border
tab.inactiveBackground
tab.unfocusedHoverBackground
terminal.ansiBlack
terminal.ansiBlue
terminal.ansiBrightRed
terminal.ansiGreen
terminal.ansiRed
terminal.ansiWhite
terminal.ansiYellow
titleBar.activeBackground
titleBar.activeForeground
titleBar.inactiveBackground

tokenColors

Foregrounds this theme assigns to the token scope catalog. A rule with only a font style is skipped, and a longer matching scope wins. Italic and bold rules are not listed — the preview above shows them in the code.

scope	HEX	RGB	RGBA
comment
comment.block
comment.block.documentation
comment.line
constant
constant.character
constant.character.escape
constant.numeric
constant.numeric.integer
constant.numeric.float
constant.numeric.hex
constant.numeric.octal
constant.other
constant.other.placeholder
entity
entity.name
entity.name.class
entity.name.function
entity.name.tag
entity.name.type
entity.name.type.enum
entity.name.type.interface
entity.name.type.struct
entity.other
entity.other.attribute-name
entity.other.inherited-class
keyword
keyword.control
keyword.control.flow
keyword.operator
keyword.operator.new
keyword.operator.assignment
keyword.operator.arithmetic
keyword.operator.logical
keyword.other
markup
markup.changed
markup.deleted
markup.heading
markup.inline.raw
markup.inserted
markup.underline
markup.underline.link
meta
meta.function
meta.function-call
meta.tag
punctuation.definition.comment
punctuation.definition.string.begin
punctuation.definition.string.end
punctuation.separator
punctuation.terminator
storage
storage.modifier
storage.type
string
string.interpolated
string.other
string.quoted
string.quoted.double
string.quoted.other
string.quoted.single
string.quoted.triple
string.regexp
string.template
string.unquoted
support
support.class
support.constant
support.function
support.type
support.type.primitive
support.type.property-name
support.variable
variable
variable.function
variable.language
variable.name
variable.other
variable.other.constant
variable.other.property
variable.other.readwrite
variable.parameter

Firefox DevTools Theme

Color themes

VS Code preview

colors

tokenColors

Firefox Theme