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LeanMark v0.4.2

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@github-actions github-actions released this 20 Oct 19:41
· 32 commits to main since this release
v0.4.2
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LeanMark v0.4.2

LeanMark 0.4.2 removes a white flash when LeanMark opens on Windows with the
dark theme.

Release assets

Platform Artifact
Windows x64 LeanMark-v0.4.2-windows-x64.zip
Ubuntu 24.04 / Debian-compatible x86-64 LeanMark-v0.4.2-linux-x86_64.deb
macOS Intel and Apple silicon LeanMark-v0.4.2-macos-universal-preview.zip

Every artifact has an adjacent .sha256 sidecar in this release.

Fix

  • No white flash at launch. With the dark theme, a new LeanMark window was
    white for about a quarter second before the reader appeared. Two things
    caused it. The window skipped painting its own background, so it kept
    Windows' default white surface until WebView2 drew; it now fills that area
    with the reader background. And WebView2 itself renders white before an
    app's background color takes effect, which Microsoft documents along with
    the fix: LeanMark now gives WebView2 the theme background through the
    WEBVIEW2_DEFAULT_BACKGROUND_COLOR environment variable before it starts,
    and clears the variable once the reader exists so programs LeanMark opens do
    not inherit it.

How it was measured

Each build was launched five times with the dark theme and the diagram
showcase document, and the window's client area was screen-captured for 2.5
seconds after each launch. A frame counted as a flash when more than a fifth
of it was near white. 0.4.1 flashed in all five launches, with the whole
window white for 0.2 to 0.5 seconds. 0.4.2 flashed in none; the most white any
frame showed was 1.3 percent, which is the document's own light text. The
Windows verification suite, including the window launch and real-page checks,
passes on Windows 11.

Installing

On Windows, run the installer from the extracted ZIP:

powershell.exe -NoProfile -ExecutionPolicy Bypass -File .\installer\install.ps1 -OpenDefaultAppsSettings

For a portable copy, clear the downloaded-file mark once from the extracted
folder with Get-ChildItem -Recurse | Unblock-File.

winget upgrade abooodbah.LeanMark picks up 0.4.2 once the winget community
repository has accepted the new manifest.

Platform notes

The Linux and macOS packages carry no changes beyond the version number. The
macOS preview remains ad-hoc signed and not notarized, so Gatekeeper may
require an explicit approval in System Settings > Privacy & Security.

Assets 9
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