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fix: add theme data source for devtools. (#44635) 

* fix: add theme data source for devtools.

Co-authored-by: Bill Shen <shenyb32768@gmail.com>

* chore: add ut.

Co-authored-by: bill.shen <shenyb32768@gmail.com>

* chore: remove recording histograms

Co-authored-by: Bill Shen <shenyb32768@gmail.com>

* fix: add theme data source for devtools.

Co-authored-by: Bill Shen <shenyb32768@gmail.com>

* chore: separate files

Co-authored-by: Bill Shen <shenyb32768@gmail.com>

* chore: separate files

Co-authored-by: Bill Shen <shenyb32768@gmail.com>

* chore: remove pragma once

Co-authored-by: Bill Shen <shenyb32768@gmail.com>

* chore: fix lint issue.

Co-authored-by: bill.shen <shenyb32768@gmail.com>

---------

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Bill Shen <shenyb32768@gmail.com>
This commit is contained in:
trop[bot] 2024-11-13 16:04:39 +01:00 коммит произвёл GitHub
Родитель 5e07ab9728
Коммит eddae27077
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Идентификатор ключа GPG: B5690EEEBB952194
9 изменённых файлов: 474 добавлений и 110 удалений
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1
chromium_src/BUILD.gn
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@ -180,6 +180,7 @@ static_library("chrome") {
public_deps = [
"//chrome/browser:dev_ui_browser_resources",
"//chrome/browser/resources/accessibility:resources",
"//chrome/browser/ui/color:color_headers",
"//chrome/browser/ui/color:mixers",
"//chrome/common",
"//chrome/common:version_header",

4
filenames.gni
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@ -507,6 +507,10 @@ filenames = {
"shell/browser/ui/devtools_manager_delegate.h",
"shell/browser/ui/devtools_ui.cc",
"shell/browser/ui/devtools_ui.h",
"shell/browser/ui/devtools_ui_bundle_data_source.cc",
"shell/browser/ui/devtools_ui_bundle_data_source.h",
"shell/browser/ui/devtools_ui_theme_data_source.cc",
"shell/browser/ui/devtools_ui_theme_data_source.h",
"shell/browser/ui/drag_util.cc",
"shell/browser/ui/drag_util.h",
"shell/browser/ui/electron_menu_model.cc",

114
shell/browser/ui/devtools_ui.cc
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@ -5,127 +5,21 @@
#include "shell/browser/ui/devtools_ui.h"
#include <memory>
#include <string>
#include <utility>
#include "base/memory/ref_counted_memory.h"
#include "base/strings/strcat.h"
#include "base/strings/string_util.h"
#include "chrome/common/webui_url_constants.h"
#include "content/public/browser/devtools_frontend_host.h"
#include "content/public/browser/url_data_source.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "shell/browser/ui/devtools_ui_bundle_data_source.h"
#include "shell/browser/ui/devtools_ui_theme_data_source.h"
namespace electron {
namespace {
std::string PathWithoutParams(const std::string& path) {
return GURL(base::StrCat({content::kChromeDevToolsScheme,
url::kStandardSchemeSeparator,
chrome::kChromeUIDevToolsHost}))
.Resolve(path)
.path()
.substr(1);
}
std::string GetMimeTypeForUrl(const GURL& url) {
std::string filename = url.ExtractFileName();
if (base::EndsWith(filename, ".html", base::CompareCase::INSENSITIVE_ASCII)) {
return "text/html";
} else if (base::EndsWith(filename, ".css",
base::CompareCase::INSENSITIVE_ASCII)) {
return "text/css";
} else if (base::EndsWith(filename, ".js",
base::CompareCase::INSENSITIVE_ASCII) ||
base::EndsWith(filename, ".mjs",
base::CompareCase::INSENSITIVE_ASCII)) {
return "application/javascript";
} else if (base::EndsWith(filename, ".png",
base::CompareCase::INSENSITIVE_ASCII)) {
return "image/png";
} else if (base::EndsWith(filename, ".map",
base::CompareCase::INSENSITIVE_ASCII)) {
return "application/json";
} else if (base::EndsWith(filename, ".ts",
base::CompareCase::INSENSITIVE_ASCII)) {
return "application/x-typescript";
} else if (base::EndsWith(filename, ".gif",
base::CompareCase::INSENSITIVE_ASCII)) {
return "image/gif";
} else if (base::EndsWith(filename, ".svg",
base::CompareCase::INSENSITIVE_ASCII)) {
return "image/svg+xml";
} else if (base::EndsWith(filename, ".manifest",
base::CompareCase::INSENSITIVE_ASCII)) {
return "text/cache-manifest";
}
return "text/html";
}
class BundledDataSource : public content::URLDataSource {
public:
BundledDataSource() = default;
~BundledDataSource() override = default;
// disable copy
BundledDataSource(const BundledDataSource&) = delete;
BundledDataSource& operator=(const BundledDataSource&) = delete;
// content::URLDataSource implementation.
std::string GetSource() override { return chrome::kChromeUIDevToolsHost; }
void StartDataRequest(const GURL& url,
const content::WebContents::Getter& wc_getter,
GotDataCallback callback) override {
const std::string path = content::URLDataSource::URLToRequestPath(url);
// Serve request from local bundle.
std::string bundled_path_prefix(chrome::kChromeUIDevToolsBundledPath);
bundled_path_prefix += "/";
if (base::StartsWith(path, bundled_path_prefix,
base::CompareCase::INSENSITIVE_ASCII)) {
StartBundledDataRequest(path.substr(bundled_path_prefix.length()),
std::move(callback));
return;
}
// We do not handle remote and custom requests.
std::move(callback).Run(nullptr);
}
std::string GetMimeType(const GURL& url) override {
return GetMimeTypeForUrl(url);
}
bool ShouldAddContentSecurityPolicy() override { return false; }
bool ShouldDenyXFrameOptions() override { return false; }
bool ShouldServeMimeTypeAsContentTypeHeader() override { return true; }
void StartBundledDataRequest(const std::string& path,
GotDataCallback callback) {
std::string filename = PathWithoutParams(path);
scoped_refptr<base::RefCountedMemory> bytes =
content::DevToolsFrontendHost::GetFrontendResourceBytes(filename);
DLOG_IF(WARNING, !bytes)
<< "Unable to find dev tool resource: " << filename
<< ". If you compiled with debug_devtools=1, try running with "
"--debug-devtools.";
std::move(callback).Run(bytes);
}
};
} // namespace
DevToolsUI::DevToolsUI(content::BrowserContext* browser_context,
content::WebUI* web_ui)
: WebUIController(web_ui) {
web_ui->SetBindings(content::BindingsPolicySet());
content::URLDataSource::Add(browser_context,
std::make_unique<BundledDataSource>());
content::URLDataSource::Add(browser_context,
std::make_unique<ThemeDataSource>());
}
} // namespace electron

1
shell/browser/ui/devtools_ui.h
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@ -14,6 +14,7 @@ class DevToolsUI : public content::WebUIController {
public:
explicit DevToolsUI(content::BrowserContext* browser_context,
content::WebUI* web_ui);
~DevToolsUI() override = default;
// disable copy
DevToolsUI(const DevToolsUI&) = delete;

136
shell/browser/ui/devtools_ui_bundle_data_source.cc Normal file
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@ -0,0 +1,136 @@
// Copyright (c) 2024 The Chromium Authors. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/browser/ui/devtools_ui_bundle_data_source.h"
#include <memory>
#include <string>
#include <utility>
#include "base/memory/ref_counted_memory.h"
#include "base/metrics/histogram_functions.h"
#include "base/strings/strcat.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "chrome/browser/ui/color/chrome_color_id.h"
#include "chrome/browser/ui/color/chrome_color_provider_utils.h"
#include "chrome/common/webui_url_constants.h"
#include "content/public/browser/devtools_frontend_host.h"
#include "content/public/browser/url_data_source.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "net/base/url_util.h"
#include "ui/base/webui/web_ui_util.h"
#include "ui/color/color_provider.h"
#include "ui/color/color_provider_utils.h"
namespace electron {
namespace {
std::string PathWithoutParams(const std::string& path) {
return GURL(base::StrCat({content::kChromeDevToolsScheme,
url::kStandardSchemeSeparator,
chrome::kChromeUIDevToolsHost}))
.Resolve(path)
.path()
.substr(1);
}
scoped_refptr<base::RefCountedMemory> CreateNotFoundResponse() {
const char kHttpNotFound[] = "HTTP/1.1 404 Not Found\n\n";
return base::MakeRefCounted<base::RefCountedStaticMemory>(
base::byte_span_from_cstring(kHttpNotFound));
}
std::string GetMimeTypeForUrl(const GURL& url) {
std::string filename = url.ExtractFileName();
if (base::EndsWith(filename, ".html", base::CompareCase::INSENSITIVE_ASCII)) {
return "text/html";
} else if (base::EndsWith(filename, ".css",
base::CompareCase::INSENSITIVE_ASCII)) {
return "text/css";
} else if (base::EndsWith(filename, ".js",
base::CompareCase::INSENSITIVE_ASCII) ||
base::EndsWith(filename, ".mjs",
base::CompareCase::INSENSITIVE_ASCII)) {
return "application/javascript";
} else if (base::EndsWith(filename, ".png",
base::CompareCase::INSENSITIVE_ASCII)) {
return "image/png";
} else if (base::EndsWith(filename, ".map",
base::CompareCase::INSENSITIVE_ASCII)) {
return "application/json";
} else if (base::EndsWith(filename, ".ts",
base::CompareCase::INSENSITIVE_ASCII)) {
return "application/x-typescript";
} else if (base::EndsWith(filename, ".gif",
base::CompareCase::INSENSITIVE_ASCII)) {
return "image/gif";
} else if (base::EndsWith(filename, ".svg",
base::CompareCase::INSENSITIVE_ASCII)) {
return "image/svg+xml";
} else if (base::EndsWith(filename, ".manifest",
base::CompareCase::INSENSITIVE_ASCII)) {
return "text/cache-manifest";
}
return "text/html";
}
} // namespace
#pragma mark - BundledDataSource
std::string BundledDataSource::GetSource() {
// content::URLDataSource implementation.
return chrome::kChromeUIDevToolsHost;
}
void BundledDataSource::StartDataRequest(
const GURL& url,
const content::WebContents::Getter& wc_getter,
GotDataCallback callback) {
const std::string path = content::URLDataSource::URLToRequestPath(url);
// Serve request from local bundle.
std::string bundled_path_prefix(chrome::kChromeUIDevToolsBundledPath);
bundled_path_prefix += "/";
if (base::StartsWith(path, bundled_path_prefix,
base::CompareCase::INSENSITIVE_ASCII)) {
StartBundledDataRequest(path.substr(bundled_path_prefix.length()),
std::move(callback));
return;
}
// We do not handle remote and custom requests.
std::move(callback).Run(CreateNotFoundResponse());
}
std::string BundledDataSource::GetMimeType(const GURL& url) {
return GetMimeTypeForUrl(url);
}
bool BundledDataSource::ShouldAddContentSecurityPolicy() {
return false;
}
bool BundledDataSource::ShouldDenyXFrameOptions() {
return false;
}
bool BundledDataSource::ShouldServeMimeTypeAsContentTypeHeader() {
return true;
}
void BundledDataSource::StartBundledDataRequest(const std::string& path,
GotDataCallback callback) {
std::string filename = PathWithoutParams(path);
scoped_refptr<base::RefCountedMemory> bytes =
content::DevToolsFrontendHost::GetFrontendResourceBytes(filename);
DLOG_IF(WARNING, !bytes)
<< "Unable to find dev tool resource: " << filename
<< ". If you compiled with debug_devtools=1, try running with "
"--debug-devtools.";
std::move(callback).Run(bytes);
}
} // namespace electron

40
shell/browser/ui/devtools_ui_bundle_data_source.h Normal file
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@ -0,0 +1,40 @@
// Copyright (c) 2024 The Chromium Authors. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#ifndef ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_UI_BUNDLE_DATA_SOURCE_H_
#define ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_UI_BUNDLE_DATA_SOURCE_H_
#include "content/public/browser/url_data_source.h"
namespace electron {
// A BundledDataSource implementation that handles devtools://devtools/
// requests.
class BundledDataSource : public content::URLDataSource {
public:
BundledDataSource() = default;
~BundledDataSource() override = default;
// disable copy
BundledDataSource(const BundledDataSource&) = delete;
BundledDataSource& operator=(const BundledDataSource&) = delete;
std::string GetSource() override;
void StartDataRequest(const GURL& url,
const content::WebContents::Getter& wc_getter,
GotDataCallback callback) override;
private:
std::string GetMimeType(const GURL& url) override;
bool ShouldAddContentSecurityPolicy() override;
bool ShouldDenyXFrameOptions() override;
bool ShouldServeMimeTypeAsContentTypeHeader() override;
void StartBundledDataRequest(const std::string& path,
GotDataCallback callback);
};
} // namespace electron
#endif // ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_UI_BUNDLE_DATA_SOURCE_H_

220
shell/browser/ui/devtools_ui_theme_data_source.cc Normal file
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@ -0,0 +1,220 @@
// Copyright (c) 2024 The Chromium Authors. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/browser/ui/devtools_ui_theme_data_source.h"
#include <memory>
#include <string>
#include <utility>
#include "base/memory/ref_counted_memory.h"
#include "base/metrics/histogram_functions.h"
#include "base/strings/strcat.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "chrome/browser/ui/color/chrome_color_id.h"
#include "chrome/browser/ui/color/chrome_color_provider_utils.h"
#include "chrome/common/webui_url_constants.h"
#include "content/public/browser/devtools_frontend_host.h"
#include "content/public/browser/url_data_source.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "net/base/url_util.h"
#include "ui/base/webui/web_ui_util.h"
#include "ui/color/color_provider.h"
#include "ui/color/color_provider_utils.h"
namespace electron {
namespace {
GURL GetThemeUrl(const std::string& path) {
return GURL(std::string(content::kChromeDevToolsScheme) +
url::kStandardSchemeSeparator +
std::string(chrome::kChromeUIThemeHost) + "/" + path);
}
scoped_refptr<base::RefCountedMemory> CreateNotFoundResponse() {
const char kHttpNotFound[] = "HTTP/1.1 404 Not Found\n\n";
return base::MakeRefCounted<base::RefCountedStaticMemory>(
base::byte_span_from_cstring(kHttpNotFound));
}
std::string GetMimeTypeForUrl(const GURL& url) {
std::string filename = url.ExtractFileName();
if (base::EndsWith(filename, ".html", base::CompareCase::INSENSITIVE_ASCII)) {
return "text/html";
} else if (base::EndsWith(filename, ".css",
base::CompareCase::INSENSITIVE_ASCII)) {
return "text/css";
} else if (base::EndsWith(filename, ".js",
base::CompareCase::INSENSITIVE_ASCII) ||
base::EndsWith(filename, ".mjs",
base::CompareCase::INSENSITIVE_ASCII)) {
return "application/javascript";
} else if (base::EndsWith(filename, ".png",
base::CompareCase::INSENSITIVE_ASCII)) {
return "image/png";
} else if (base::EndsWith(filename, ".map",
base::CompareCase::INSENSITIVE_ASCII)) {
return "application/json";
} else if (base::EndsWith(filename, ".ts",
base::CompareCase::INSENSITIVE_ASCII)) {
return "application/x-typescript";
} else if (base::EndsWith(filename, ".gif",
base::CompareCase::INSENSITIVE_ASCII)) {
return "image/gif";
} else if (base::EndsWith(filename, ".svg",
base::CompareCase::INSENSITIVE_ASCII)) {
return "image/svg+xml";
} else if (base::EndsWith(filename, ".manifest",
base::CompareCase::INSENSITIVE_ASCII)) {
return "text/cache-manifest";
}
return "text/html";
}
} // namespace
std::string ThemeDataSource::GetSource() {
// kChromeUIThemeHost
return chrome::kChromeUIThemeHost;
}
void ThemeDataSource::StartDataRequest(
const GURL& url,
const content::WebContents::Getter& wc_getter,
GotDataCallback callback) {
// TODO(crbug.com/40050262): Simplify usages of |path| since |url| is
// available.
const std::string path = content::URLDataSource::URLToRequestPath(url);
// Default scale factor if not specified.
float scale = 1.0f;
// All frames by default if not specified.
int frame = -1;
std::string parsed_path;
webui::ParsePathAndImageSpec(GetThemeUrl(path), &parsed_path, &scale, &frame);
// kColorsCssPath should stay consistent with COLORS_CSS_SELECTOR in
// colors_css_updater.js.
constexpr char kColorsCssPath[] = "colors.css";
if (parsed_path == kColorsCssPath) {
SendColorsCss(url, wc_getter, std::move(callback));
return;
}
std::move(callback).Run(CreateNotFoundResponse());
}
std::string ThemeDataSource::GetMimeType(const GURL& url) {
return GetMimeTypeForUrl(url);
}
void ThemeDataSource::SendColorsCss(
const GURL& url,
const content::WebContents::Getter& wc_getter,
content::URLDataSource::GotDataCallback callback) {
const ui::ColorProvider& color_provider = wc_getter.Run()->GetColorProvider();
std::string sets_param;
std::vector<std::string_view> color_id_sets;
bool generate_rgb_vars = false;
std::string generate_rgb_vars_query_value;
if (net::GetValueForKeyInQuery(url, "generate_rgb_vars",
&generate_rgb_vars_query_value)) {
generate_rgb_vars =
base::ToLowerASCII(generate_rgb_vars_query_value) == "true";
}
bool shadow_host = false;
std::string shadow_host_query_value;
if (net::GetValueForKeyInQuery(url, "shadow_host",
&shadow_host_query_value)) {
shadow_host = base::ToLowerASCII(shadow_host_query_value) == "true";
}
if (!net::GetValueForKeyInQuery(url, "sets", &sets_param)) {
LOG(ERROR)
<< "colors.css requires a 'sets' query parameter to specify the "
"color "
"id sets returned e.g chrome://theme/colors.css?sets=ui,chrome";
std::move(callback).Run(nullptr);
return;
}
color_id_sets = base::SplitStringPiece(sets_param, ",", base::TRIM_WHITESPACE,
base::SPLIT_WANT_ALL);
using ColorIdCSSCallback = base::RepeatingCallback<std::string(ui::ColorId)>;
auto generate_color_mapping =
[&color_id_sets, &color_provider, &generate_rgb_vars](
std::string set_name, ui::ColorId start, ui::ColorId end,
ColorIdCSSCallback color_css_name) {
// Only return these mappings if specified in the query parameter.
auto it = base::ranges::find(color_id_sets, set_name);
if (it == color_id_sets.end()) {
return std::string();
}
color_id_sets.erase(it);
std::string css_string;
for (ui::ColorId id = start; id < end; ++id) {
const SkColor color = color_provider.GetColor(id);
std::string css_id_to_color_mapping =
base::StringPrintf("%s:%s;", color_css_name.Run(id).c_str(),
ui::ConvertSkColorToCSSColor(color).c_str());
base::StrAppend(&css_string, {css_id_to_color_mapping});
if (generate_rgb_vars) {
// Also generate a r,g,b string for each color so apps can construct
// colors with their own opacities in css.
const std::string css_rgb_color_str =
color_utils::SkColorToRgbString(color);
const std::string css_id_to_rgb_color_mapping =
base::StringPrintf("%s-rgb:%s;", color_css_name.Run(id).c_str(),
css_rgb_color_str.c_str());
base::StrAppend(&css_string, {css_id_to_rgb_color_mapping});
}
}
return css_string;
};
// Convenience lambda for wrapping
// |ConvertColorProviderColorIdToCSSColorId|.
auto generate_color_provider_mapping = [&generate_color_mapping](
std::string set_name,
ui::ColorId start, ui::ColorId end,
std::string (*color_id_name)(
ui::ColorId)) {
auto color_id_to_css_name = base::BindRepeating(
[](std::string (*color_id_name)(ui::ColorId), ui::ColorId id) {
return ui::ConvertColorProviderColorIdToCSSColorId(color_id_name(id));
},
color_id_name);
return generate_color_mapping(set_name, start, end, color_id_to_css_name);
};
std::string css_selector;
if (shadow_host) {
css_selector = ":host";
} else {
// This selector requires more specificity than other existing CSS
// selectors that define variables. We increase the specifity by adding
// a pseudoselector.
css_selector = "html:not(#z)";
}
std::string css_string = base::StrCat(
{css_selector, "{", "--user-color-source: baseline-default;",
generate_color_provider_mapping("ui", ui::kUiColorsStart,
ui::kUiColorsEnd, ui::ColorIdName),
generate_color_provider_mapping("chrome", kChromeColorsStart,
kChromeColorsEnd, &ChromeColorIdName),
"}"});
if (!color_id_sets.empty()) {
LOG(ERROR) << "Unrecognized color set(s) specified for "
"chrome://theme/colors.css: "
<< base::JoinString(color_id_sets, ",");
std::move(callback).Run(nullptr);
return;
}
std::move(callback).Run(
base::MakeRefCounted<base::RefCountedString>(std::move(css_string)));
}
} // namespace electron

36
shell/browser/ui/devtools_ui_theme_data_source.h Normal file
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@ -0,0 +1,36 @@
// Copyright (c) 2024 The Chromium Authors. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#ifndef ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_UI_THEME_DATA_SOURCE_H_
#define ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_UI_THEME_DATA_SOURCE_H_
#include "content/public/browser/url_data_source.h"
namespace electron {
// A ThemeDataSource implementation that handles devtools://theme/
// requests.
class ThemeDataSource : public content::URLDataSource {
public:
ThemeDataSource() = default;
~ThemeDataSource() override = default;
ThemeDataSource(const ThemeDataSource&) = delete;
ThemeDataSource& operator=(const ThemeDataSource&) = delete;
std::string GetSource() override;
void StartDataRequest(const GURL& url,
const content::WebContents::Getter& wc_getter,
GotDataCallback callback) override;
private:
std::string GetMimeType(const GURL& url) override;
void SendColorsCss(const GURL& url,
const content::WebContents::Getter& wc_getter,
content::URLDataSource::GotDataCallback callback);
};
} // namespace electron
#endif // ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_UI_THEME_DATA_SOURCE_H_

32
spec/chromium-spec.ts
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@ -2858,6 +2858,38 @@ describe('chromium features', () => {
await new Promise((resolve) => { utter.onend = resolve; });
});
});
describe('devtools', () => {
it('fetch colors.css', async () => {
// <link href="devtools://theme/colors.css?sets=ui,chrome" rel="stylesheet">
const w = new BrowserWindow({ show: false });
const devtools = new BrowserWindow({ show: false });
const devToolsOpened = once(w.webContents, 'devtools-opened');
w.webContents.setDevToolsWebContents(devtools.webContents);
w.webContents.openDevTools();
await devToolsOpened;
expect(devtools.webContents.getURL().startsWith('devtools://devtools')).to.be.true();
const result = await devtools.webContents.executeJavaScript(`
document.body.querySelector('link[href*=\\'//theme/colors.css\\']')?.getAttribute('href');
`);
expect(result.startsWith('devtools://theme/colors.css?sets=ui,chrome')).to.be.true();
const colorAccentResult = await devtools.webContents.executeJavaScript(`
const style = getComputedStyle(document.body);
style.getPropertyValue('--color-accent');
`);
expect(colorAccentResult).to.not.equal('');
const colorAppMenuHighlightSeverityLow = await devtools.webContents.executeJavaScript(`
style.getPropertyValue('--color-app-menu-highlight-severity-low');
`);
expect(colorAppMenuHighlightSeverityLow).to.not.equal('');
const rgb = await devtools.webContents.executeJavaScript(`
style.getPropertyValue('--color-accent-rgb');
`);
expect(rgb).to.equal('');
});
});
});
describe('font fallback', () => {