Cross platform GUI toolkit in Go inspired by Material Design
This report summarizes scanner evidence for fyne-io/fyne, a Go project with 28,798 GitHub stars. SynthScan examined 182,091 lines of code across 1600 source files, recording 322 pattern matches distributed across 6 syntactic categories. The legacy adjusted pattern signal is 2.1 (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? 253 finding(s).
Are imports declared and package/API names verified? 69 finding(s).
Are wrappers, guards, and repeated structures necessary? 3 finding(s).
Which changes need focused human review? 322 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 322 distinct pattern matches across 6 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 | cloud.go | 1 | package fyne | COMMENT |
| LOW | window.go | 1 | package fyne | COMMENT |
| LOW | window.go | 61 | // The way this is rendered will depend on the loaded driver. | COMMENT |
| LOW | window.go | 81 | Show() | COMMENT |
| LOW | widget.go | 1 | package fyne | COMMENT |
| LOW | widget.go | 21 | // Renderers should dispose and clean up any related resources, if necessary. | COMMENT |
| LOW | fyne.go | 1 | // Package fyne describes the objects and components available to any Fyne app. | COMMENT |
| LOW | fyne.go | 21 | // widget.NewButton("Hi!", func() { | COMMENT |
| LOW | thread.go | 1 | package fyne | COMMENT |
| LOW | preferences.go | 1 | package fyne | COMMENT |
| LOW | preferences.go | 21 | // | COMMENT |
| LOW | preferences.go | 41 | // | COMMENT |
| LOW | preferences.go | 61 | // | COMMENT |
| LOW | key.go | 161 | KeySemicolon KeyName = ";" | COMMENT |
| LOW | key.go | 181 | type KeyModifier int | COMMENT |
| LOW | canvasobject.go | 1 | package fyne | COMMENT |
| LOW | canvasobject.go | 61 | // When focused it will also have TypedRune called as text is input and | COMMENT |
| LOW | settings.go | 21 | // | COMMENT |
| LOW | app.go | 21 | var ErrPasswordIncorrect = errors.New("the password is incorrect") | COMMENT |
| LOW | app.go | 41 | COMMENT | |
| LOW | app.go | 61 | // This must be set for use of the [App.Preferences]. see [NewWithID]. | COMMENT |
| LOW | app.go | 81 | // It is safe to call with an unknown ID or after the notification has already fired. | COMMENT |
| LOW | app.go | 101 | // needed. The app can then obtain a password, through secure means or by asking the user, and call this | COMMENT |
| LOW | app.go | 121 | COMMENT | |
| LOW | app.go | 181 | // Icon contains, if present, a resource of the icon that was bundled at build time. | COMMENT |
| LOW | text.go | 41 | // TextTruncate trims the text to the widget's width, no wrapping is applied. | COMMENT |
| LOW | uri.go | 21 | URI() URI | COMMENT |
| LOW | uri.go | 41 | type URI interface { | COMMENT |
| LOW | uri.go | 61 | // 'file'. | COMMENT |
| LOW | uri.go | 81 | // Query should return the URI query, as defined by IETF RFC3986. | COMMENT |
| LOW | animation.go | 21 | // AnimationEaseIn starts slowly and accelerates to the end. | COMMENT |
| LOW | driver.go | 21 | // AbsolutePositionForObject returns the position of a given [CanvasObject] relative to the top/left of a canvas. | COMMENT |
| LOW | driver.go | 41 | // | COMMENT |
| LOW | cmd/fyne/internal/mobile/build_iosapp.go | 641 | } | COMMENT |
| LOW | cmd/fyne/internal/mobile/build_iosapp.go | 661 | // | COMMENT |
| LOW | cmd/fyne/internal/mobile/env.go | 121 | } | COMMENT |
| LOW | cmd/fyne/internal/mobile/writer.go | 1 | // Copyright 2015 The Go Authors. All rights reserved. | COMMENT |
| LOW | cmd/fyne/internal/mobile/writer.go | 21 | // | COMMENT |
| LOW | cmd/fyne/internal/mobile/writer.go | 41 | // Note the \r\n line breaks. | COMMENT |
| LOW | cmd/fyne/internal/mobile/binres/binres.go | 1 | // Copyright 2015 The Go Authors. All rights reserved. | COMMENT |
| LOW | cmd/fyne/internal/mobile/binres/binres.go | 21 | // | COMMENT |
| LOW | cmd/fyne/internal/mobile/binres/pool.go | 21 | COMMENT | |
| LOW | cmd/fyne/internal/mobile/binres/pool.go | 41 | // | COMMENT |
| LOW | cmd/fyne/internal/mobile/binres/table.go | 21 | type TableRef uint32 | COMMENT |
| LOW | cmd/fyne/internal/mobile/gendex/gendex.go | 1 | // Copyright 2015 The Go Authors. All rights reserved. | COMMENT |
| LOW | widget/gridwrap.go | 41 | // an item in the GridWrap. | COMMENT |
| LOW | widget/tree_internal_test.go | 201 | assert.Equal(t, "foobar", tree.selected[0]) | COMMENT |
| LOW | widget/richtextentry.go | 21 | const ( | COMMENT |
| LOW | widget/label.go | 21 | COMMENT | |
| LOW | widget/entry.go | 501 | COMMENT | |
| LOW | widget/table.go | 61 | // This will default to an A-Z style content, unless overridden with `CreateHeader` and `UpdateHeader` calls. | COMMENT |
| LOW | widget/table.go | 81 | // Since: 2.4 | COMMENT |
| LOW | widget/table.go | 121 | } | COMMENT |
| LOW | test/test_helper.go | 81 | COMMENT | |
| LOW | driver/native.go | 21 | // AndroidWindowContext is passed to the NativeWindow.RunNative callback when it is executed | COMMENT |
| LOW | driver/native.go | 61 | // X11WindowContext is passed to the NativeWindow.RunNative callback | COMMENT |
| LOW | driver/desktop/window.go | 1 | package desktop | COMMENT |
| LOW | driver/desktop/key.go | 41 | // ShiftModifier represents a shift key being held | COMMENT |
| LOW | driver/desktop/app.go | 1 | package desktop | COMMENT |
| LOW | internal/painter/font_internal_test.go | 141 | } | COMMENT |
| 184 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | cmd/fyne_demo/tutorials/widget.go | 22 | loremIpsum = `Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque quis consectetur nisi. Suspendisse | CODE |
| LOW | cmd/fyne_demo/tutorials/widget.go | 22 | loremIpsum = `Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque quis consectetur nisi. Suspendisse | CODE |
| LOW | widget/table_desktop_test.go | 21 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 32 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 63 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 80 | assert.Equal(t, NewLabel("placeholder").MinSize(), content.Objects()[0].(*Label).Size()) | CODE |
| LOW | widget/table_internal_test.go | 86 | assert.Equal(t, NewLabel("placeholder").MinSize(), content.Objects()[0].(*Label).Size()) | CODE |
| LOW | widget/table_internal_test.go | 339 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 374 | displayText := "placeholder" | CODE |
| LOW | widget/table_internal_test.go | 387 | assert.Equal(t, "placeholder", cellRenderer.(*tableCellsRenderer).Objects()[7].(*Label).Text) | CODE |
| LOW | widget/table_internal_test.go | 574 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 660 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 689 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 733 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 763 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 814 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 820 | obj.(*Label).Text = "placeholder" | CODE |
| LOW | widget/table_internal_test.go | 975 | return NewLabel("placeholder") | CODE |
| LOW | widget/table_internal_test.go | 1017 | return NewLabel("placeholder") | CODE |
| LOW⚡ | widget/richtext_benchmark_test.go | 12 | const loremIpsum = `Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque quis consectetur nisi. Suspend | CODE |
| LOW⚡ | widget/richtext_benchmark_test.go | 12 | const loremIpsum = `Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque quis consectetur nisi. Suspend | CODE |
| LOW⚡ | widget/richtext_benchmark_test.go | 20 | Nullam eu mattis dolor. Sed sit amet ipsum gravida, pretium justo eget, mattis est. Cras viverra aliquet velit, a faucib | CODE |
| LOW⚡ | widget/richtext_benchmark_test.go | 20 | Nullam eu mattis dolor. Sed sit amet ipsum gravida, pretium justo eget, mattis est. Cras viverra aliquet velit, a faucib | CODE |
| LOW | widget/testdata/form/extended_entry.xml | 15 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/form/layout.xml | 15 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/form/layout.xml | 32 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/focus_gained.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | …dget/testdata/entry/tapped_secondary_password_menu.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | …get/testdata/entry/focus_with_popup_entry_selected.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/focused_enabled.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/focus_lost.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | …testdata/entry/always_on_without_validator_success.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | …get/testdata/entry/disableable_enabled_placeholder.xml | 8 | <text color="placeholder" pos="8,6" size="34x19">Type!</text> | CODE |
| LOW | widget/testdata/entry/placeholder_without_text.xml | 8 | <text color="placeholder" pos="8,6" size="63x19">Placehold</text> | CODE |
| LOW | …dget/testdata/entry/always_on_with_validator_error.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/validator_not_empty_unfocused.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/initial.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/set_placeholder_set.xml | 8 | <text color="placeholder" pos="8,6" size="26x19">Test</text> | CODE |
| LOW | widget/testdata/entry/tapped_secondary_full_menu.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/validator_not_empty_focused.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/disableable_enabled_empty.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/focus_with_popup_initial.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/validate_initial.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/validator_not_empty_initial.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/focus_with_popup_dismissed.xml | 8 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | …t/testdata/entry/always_on_without_validator_error.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/entry/initial_multiline.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/select_entry/disableable_enabled.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/select_entry/dropdown_initial.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/select_entry/dropdown_empty_setopts.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | …t/testdata/select_entry/disableable_enabled_tapped.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/select_entry/dropdown_empty_opened.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | …testdata/select_entry/dropdown_empty_opened_shrunk.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | …a/select_entry/disableable_enabled_tapped_selected.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | …t/testdata/select_entry/disableable_enabled_opened.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | widget/testdata/password_entry/placeholder_initial.xml | 9 | <text color="placeholder" pos="8,6" size="63x19">Password</text> | CODE |
| LOW | widget/testdata/password_entry/initial.xml | 9 | <text color="placeholder" pos="8,6" size="0x19"></text> | CODE |
| LOW | test/markup_renderer.go | 512 | return "placeholder" | CODE |
| LOW | internal/driver/glfw/testdata/windows_hover_object.xml | 13 | <text color="placeholder" pos="8,7" size="0x19"></text> | CODE |
| LOW | internal/driver/glfw/testdata/windows_hover_object.xml | 30 | <text color="placeholder" pos="8,7" size="0x19"></text> | CODE |
| 5 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | widget/table.go | 1533 | r.cells.t.dividerLayer.Content.Refresh() | CODE |
| CRITICAL | widget/table.go | 1711 | r.cells.t.top.Content.Refresh() | CODE |
| CRITICAL | widget/table.go | 1753 | r.cells.t.left.Content.Refresh() | CODE |
| CRITICAL | widget/table.go | 1769 | r.cells.t.corner.Content.Refresh() | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | uri.go | 38 | // Implementations are highly recommended to utilize [net/url] to implement URI | COMMENT |
| MEDIUM | widget/textgrid.go | 663 | // round it for seamless background | COMMENT |
| MEDIUM | internal/painter/draw.go | 386 | // allowed for the width and height of the shape. Corner radius may utilize unused capacity from adjacent corners with r | COMMENT |
| MEDIUM | internal/repository/memory.go | 54 | // This repository is not designed to be particularly fast or robust, but | COMMENT |
| MEDIUM | internal/async/doc.go | 6 | // can utilize select and channel semantics, whereas queue cannot. A user of | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| HIGH | cmd/fyne/internal/mobile/build_iosapp.go | 663 | // greater than U+007f. In this implementation, we just replace everything non | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | cmd/fyne/internal/templates/data/webgl-debug.js | 631 | function makeLostContextSimulatingCanvas(canvas) { | CODE |
| LOW | cmd/fyne/internal/templates/data/webgl-debug.js | 805 | function makeLostContextFunctionWrapper(ctx, functionName) { | CODE |
| LOW | cmd/fyne/internal/templates/data/webgl-debug.js | 865 | function makeLostContextSimulatingContext(ctx) { | CODE |