Fluent System Icons are a collection of familiar, friendly and modern icons from Microsoft.
This report summarizes scanner evidence for microsoft/fluentui-system-icons, a HTML project with 10,929 GitHub stars. SynthScan examined 739,366 lines of code across 54315 source files, recording 96 pattern matches distributed across 9 syntactic categories. The legacy adjusted pattern signal is 0.2 (Low pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Payload schema: 1.0.0 · Engine: 2.0.0 · Scoring: heuristic-density-v1 · Scan date: 2026-10-31.
Can maintainers explain intent, assumptions, and trade-offs? 87 finding(s).
Are imports declared and package/API names verified? 9 finding(s).
Are wrappers, guards, and repeated structures necessary? 37 finding(s).
Which changes need focused human review? 96 finding(s).
This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 96 distinct pattern matches across 9 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | importer/icon-name.js | 61 | function isDirectionOnlyIconSource(file) { | CODE |
| LOW | importer/generateFont.js | 171 | function isPrivateUseAreaCodepoint(codepoint) { | CODE |
| LOW | importer/process_ios_assets.py | 45 | def xc_image_data_for_file_name(file_name, locale, metadata): | CODE |
| LOW | …ite-subsetting-webpack-plugin/src/selector-protocol.ts | 24 | export function registerSelectorCapability(compilation: webpack.Compilation): void { | CODE |
| LOW | …cons-svg-sprite-subsetting-webpack-plugin/src/index.ts | 304 | function normalizeInjectSpritesInTemplates( | CODE |
| LOW | …cons-svg-sprite-subsetting-webpack-plugin/src/index.ts | 320 | function assertValidMergedSpriteFilename(filename: string) { | CODE |
| LOW | …cons-svg-sprite-subsetting-webpack-plugin/src/index.ts | 331 | function resolveMergedSpriteFilename(template: string, fullHash: string, contentHash: string): string { | CODE |
| LOW | …cons-svg-sprite-subsetting-webpack-plugin/src/index.ts | 385 | function getEntrypointNamesForHtml(compilation: webpack.Compilation, chunksOption?: 'all' | string[]): string[] { | CODE |
| LOW | …cons-svg-sprite-subsetting-webpack-plugin/src/index.ts | 433 | function collectEntrypointSpriteUsage(compilation: webpack.Compilation): Map<string, Map<string, Set<string>>> { | CODE |
| LOW | …cons-svg-sprite-subsetting-webpack-plugin/src/index.ts | 512 | function getUsedExportsWithFallback( | CODE |
| LOW | …cons-svg-sprite-subsetting-webpack-plugin/src/index.ts | 532 | function collectSpriteUsageForEntrypoints( | CODE |
| LOW | …cons-svg-sprite-subsetting-webpack-plugin/src/index.ts | 584 | function getSpriteResourceToAssetName(compilation: webpack.Compilation): Map<string, string> { | CODE |
| LOW | …cons-svg-sprite-subsetting-webpack-plugin/src/index.ts | 652 | function isFluentUIReactSvgSpriteEntrypointModule(m: webpack.Module): m is webpack.NormalModule { | CODE |
| LOW | …cons-svg-sprite-subsetting-webpack-plugin/src/index.ts | 727 | function getExportNameToSymbolIdMap(moduleSource: string): Map<string, string> { | CODE |
| LOW | packages/react-icons/build-verify.test.js | 79 | async function assertAtomOptionsArgument(atomDir) { | CODE |
| LOW | packages/react-icons/scripts/convert-font.utils.js | 18 | function getReactIconNameFromGlyphName(iconName, resizable) { | CODE |
| LOW | packages/react-icons/scripts/convert-font.utils.js | 51 | function getCreateFluentIconHeader(relImport) { | CODE |
| LOW | packages/react-icons/scripts/convert.utils.js | 119 | function getCreateFluentIconHeader(relImport) { | CODE |
| LOW | packages/react-icons/scripts/deprecated-atoms.js | 52 | function handleDeprecatedColorAtoms(destPath, type) { | CODE |
| LOW | packages/react-icons/scripts/deprecated-atoms.js | 97 | function handleDeprecatedTextColorAtoms(destPath, type) { | CODE |
| LOW | packages/react-icons/scripts/deprecated-atoms.js | 138 | async function assertCompoundStyleVariantIssues(destPath) { | CODE |
| LOW | packages/react-icons/scripts/convert-font.js | 160 | function prepareProcessedCodepointMap(srcPath, destFolder) { | CODE |
| LOW | packages/react-icons/scripts/sprite.writer.js | 21 | function viewBoxWidthFromIconWidth(width) { | CODE |
| LOW | …ont-subsetting-webpack-plugin/src/selector-protocol.ts | 22 | export function registerSelectorCapability(compilation: BundlerCompilation): void { | CODE |
| LOW | …eact-icons-font-subsetting-webpack-plugin/src/index.ts | 389 | async function getFontAssetsAndCodepoints( | CODE |
| LOW | …act-icons-file-type/scripts/generateFileTypeIconMap.js | 63 | export function getFileTypeIconExtensionMap(): Readonly<{ [extension: string]: string }> { | CODE |
| LOW | …act-icons-file-type/src/common/fileTypeIconResolver.ts | 42 | export function getFileTypeIconNameFromExtensionOrType( | CODE |
| LOW | …act-icons-file-type/src/common/fileTypeIconResolver.ts | 76 | function getFileTypeIconDensityVariants( | CODE |
| LOW | …cons-file-type/src/common/fileTypeIconMap.generated.ts | 22 | export function getFileTypeIconExtensionMap(): Readonly<{ [extension: string]: string }> { | CODE |
| LOW | …react-icons-atomic-webpack-loader/src/select-export.ts | 25 | export function getSelectorTransformMetrics(): Readonly<typeof metrics> & { cacheEntries: number } { | CODE |
| LOW | …react-icons-atomic-webpack-loader/src/select-export.ts | 29 | export function resetSelectorTransformMetrics(): void { | CODE |
| LOW | …t-icons-atomic-webpack-loader/src/selector-protocol.ts | 151 | export function getRegisteredSelectorCapabilities(compilation: unknown): Set<SelectorCapability> { | CODE |
| LOW | packages/react-icons-atomic-webpack-loader/src/index.ts | 82 | export default function fluentIconsAtomicImportLoader( | CODE |
| LOW | packages/react-icons-atomic-webpack-loader/src/index.ts | 158 | function isGeneratedIconPackageResource(resourcePath: string): boolean { | CODE |
| LOW | packages/react-native-icons/convert-font.js | 129 | async function generateCodepointMapForWebpackPlugin(destPath, iconEntries, resizable) { | CODE |
| LOW | packages/react-native-icons/convert-font.js | 173 | function getReactIconNameFromGlyphName(iconName, resizable) { | CODE |
| LOW | .github/scripts/get-next-prerelease-version.js | 165 | function getLatestPrereleaseVersion(packageInfo, preid) { | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | importer/replace-in-files.js | 1 | #!/usr/bin/env node | COMMENT |
| LOW | …pport Files/FluentIcons-iOS/FluentIcons-iOS-umbrella.h | 1 | #ifdef __OBJC__ | COMMENT |
| LOW | …luentIcons_Example/Pods-FluentIcons_Example-umbrella.h | 1 | #ifdef __OBJC__ | COMMENT |
| LOW | …_ExampleMacOS/Pods-FluentIcons_ExampleMacOS-umbrella.h | 1 | #ifdef __OBJC__ | COMMENT |
| LOW | …t Files/FluentIcons-macOS/FluentIcons-macOS-umbrella.h | 1 | #ifdef __OBJC__ | COMMENT |
| LOW | flutter/CHANGELOG.md | 1 | ## [1.1.294] - Complete change log present here https://github.com/microsoft/fluentui-system-icons/tags | COMMENT |
| LOW | flutter/example/pubspec.yaml | 1 | name: flutter_sample_showcase | COMMENT |
| LOW | flutter/example/pubspec.yaml | 41 | # The following section is specific to Flutter. | COMMENT |
| LOW | flutter/example/pubspec.yaml | 61 | # in this "flutter" section. Each entry in this list should have a | COMMENT |
| LOW | scripts/diff.sh | 1 | #!/bin/bash | COMMENT |
| LOW | packages/svg-icons/svgo.config.js | 1 | // Re-exports the shared SVGO config so raw-SVG processing stays identical to | COMMENT |
| LOW | packages/react-icons/scripts/copy-base-fonts.js | 1 | // @ts-check | COMMENT |
| LOW | packages/react-icons/scripts/copy-base-svg.js | 1 | // Copyright (c) Microsoft Corporation. | COMMENT |
| LOW | …act-icons-font-subsetting-webpack-plugin/tsconfig.json | 1 | { | COMMENT |
| LOW | …act-icons-font-subsetting-webpack-plugin/tsconfig.json | 21 | // "jsxFragmentFactory": "", /* Specify the JSX Fragment reference used for fragments when t | COMMENT |
| LOW | …act-icons-font-subsetting-webpack-plugin/tsconfig.json | 41 | // "allowJs": true, /* Allow JavaScript files to be a part of your program. Use the | COMMENT |
| LOW | …act-icons-font-subsetting-webpack-plugin/tsconfig.json | 61 | // "emitBOM": true, /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of outpu | COMMENT |
| LOW | …act-icons-font-subsetting-webpack-plugin/tsconfig.json | 81 | // "strictFunctionTypes": true, /* When assigning functions, check to ensure parameters and the | COMMENT |
| LOW | …g-webpack-plugin/test/src/e2e-barrel-headless-fonts.js | 1 | // @ts-check | COMMENT |
| LOW | …kages/react-icons-file-type/src/common/FileIconType.ts | 1 | // Public, stable module path for the file type icon enum. The actual definitions are | COMMENT |
| LOW | packages/icon-app/tsconfig.json | 1 | { | COMMENT |
| LOW | packages/icon-app/tsconfig.json | 21 | // "jsxImportSource": "", /* Specify module specifier used to import the JSX factory func | COMMENT |
| LOW | packages/icon-app/tsconfig.json | 41 | // "checkJs": true, /* Enable error reporting in type-checked JavaScript files. */ | COMMENT |
| LOW | packages/icon-app/tsconfig.json | 61 | // "newLine": "crlf", /* Set the newline character for emitting files. */ | COMMENT |
| LOW | packages/icon-app/tsconfig.json | 81 | // "strictBindCallApply": true, /* Check that the arguments for `bind`, `call`, and `apply` met | COMMENT |
| LOW | .github/workflows/publish-standalone.yml | 161 | # byte. A genuine conflict aborts the job instead of silently mutating a published | COMMENT |
| LOW | .github/workflows/publish.yml | 121 | ## Flutter | COMMENT |
| LOW | .github/workflows/publish.yml | 221 | - name: Build Android library | COMMENT |
| LOW | .github/workflows/publish.yml | 341 | # import os | COMMENT |
| LOW | .github/workflows/publish.yml | 361 | # distribution: temurin | COMMENT |
| LOW | .github/workflows/publish.yml | 381 | # - name: Publish apk to App Center | COMMENT |
| LOW | .github/workflows/pr.yml | 141 | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | importer/generate_build_gn_android.py | 40 | gn_file.write("# This file is auto generated\n") | CODE |
| MEDIUM | importer/process_ios_assets.py | 225 | gn_file.write("# This file is auto generated\n") | CODE |
| MEDIUM | flutter/pubspec.yaml | 16 | # The following section is specific to Flutter. | COMMENT |
| MEDIUM | flutter/example/pubspec.yaml | 41 | # The following section is specific to Flutter. | COMMENT |
| MEDIUM | scripts/diff.sh | 48 | # Create a tarball of the added and modified files | COMMENT |
| MEDIUM | scripts/diff.sh | 79 | # Create a previous folder inside all_files_svg | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | …ages/docsite/stories/components/ReactIconGrid.test.tsx | 288 | expect(screen.getByLabelText('Icon name')).toHaveAttribute('placeholder', 'Icon name...'); | CODE |
| LOW | .github/workflows/pr.yml | 161 | # accessToken: "placeholder" | STRING |
| LOW | .github/workflows/pr.yml | 162 | # refreshToken: "placeholder" | STRING |
| LOW | assets/Bookmark Search/metadata.json | 15 | "placeholder" | CODE |
| LOW | assets/Bookmark Multiple/metadata.json | 19 | "placeholder" | CODE |
| LOW | assets/Bookmark/metadata.json | 20 | "placeholder" | CODE |
| LOW | assets/Bookmark Add/metadata.json | 15 | "placeholder" | CODE |
| LOW | assets/Bookmark Off/metadata.json | 15 | "placeholder" | CODE |
| LOW | assets/Image Circle/metadata.json | 22 | "placeholder", | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | packages/react-icons/docs/prerelease.md | 20 | ### Step 1: Navigate to the Workflow | COMMENT |
| LOW | packages/react-icons/docs/prerelease.md | 26 | ### Step 2: Trigger the Workflow | COMMENT |
| LOW | packages/react-icons/docs/prerelease.md | 39 | ### Step 3: Monitor the Workflow | COMMENT |
| LOW | .github/skills/pre-release-npm-package/SKILL.md | 16 | ## Step 1: Validate or Create Pre-Release Branch | COMMENT |
| LOW | .github/skills/pre-release-npm-package/SKILL.md | 41 | ## Step 2: Trigger the Pre-Release | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | importer/process_ios_assets.py | 45 | CODE | |
| LOW | importer/process_ios_assets.py | 70 | CODE | |
| LOW | importer/process_ios_assets.py | 176 | CODE | |
| LOW | scripts/generate_html_report.py | 57 | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | importer/process_ios_assets.py | 165 | # even more explicit - locale ids pertaining to this language. But this doesn't mean that we need tw | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | flutter/example/pubspec.yaml | 45 | # included with your application, so that you can use the icons in | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | scripts/diff.sh | 4 | # Usage: | COMMENT |