Fix "headers ended early" downloads and haru's look on Windows

[beingsuz]

Requested by beingsuz · project thread

Wallpaper downloads

Before: downloading a wallpaper in haru v0.7.0 on Windows failed with "fetch failed: malformed response: headers ended early".

After: the download tries other CDN hosts and avoids the servers that hang up.

How: bumps the tapline submodule from 1c5153d to 8c439f1, tapline main after UnhingedSoftware/tapline#3 merged. That brings in tapline #3 (the CDN fix) and tapline #2 (the bug pass), which haru had not picked up. An earlier commit here pinned 1b133b6, tapline #3's branch head, which had been cut before tapline #2 and so did not contain it.

Windows visuals (thread)

Before: on Windows in light mode, buttons, checkboxes and fields were light grey with light text on them (the Preview page's button looked blank), headings and the "haru" title were dark on dark, haru.exe had no icon in Explorer, screens were called DISPLAY6, and the control socket field suggested /run/user/1000/lwe.sock.

After: haru is dark everywhere with a dark title bar, the exe carries its icon, screens show the monitor's own name (or "Display 6" when it has none), and the socket placeholder is the real default path.

How: egui keeps one style per theme and follows the system's. On Windows in light mode it switched to its stock light style on the first frame, underneath haru's own panel colours. theme::apply now sets the dark theme, gives both theme slots haru's style, and sends SetTheme(Dark) for the title bar. The icon is packaging/haru.ico embedded by embed-resource from crates/haru/build.rs; the build fails rather than shipping an exe without it. Monitor names come from display-info (Windows-only dependency, so no new unsafe in haru), looked up only when the set of screens changes; commands to kirie still use kirie's name.

Verified

• cargo clippy --workspace --all-targets -D warnings clean on Linux and cross-compiled for x86_64-pc-windows-gnu; cargo test --workspace passes on Linux (175 tests, re-run against tapline 8c439f1), including new tests for the monitor labels.
• The cross-built haru.exe contains the icon group (checked with wrestool).
• Under Wine, which reports light mode like beingsuz's Windows does, the old build reproduced the light buttons and dark headings, and the new one renders dark throughout.

Not verified: nothing run on real Windows, the MSVC release build's resource compiler step, friendly monitor names on real monitors (Wine has none), and no live download.

🤖 Generated with Claude Code

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📥 Commits

Reviewing files that changed from the base of the PR and between 28ce3a6 and 55e46eb.

⛔ Files ignored due to path filters (2)

• Cargo.lock is excluded by !**/*.lock
• packaging/haru.ico is excluded by !**/*.ico

📒 Files selected for processing (15)

• Cargo.toml
• crates/haru-apply/Cargo.toml
• crates/haru-apply/src/engine.rs
• crates/haru-apply/src/kirie.rs
• crates/haru-apply/src/lib.rs
• crates/haru-apply/src/monitors.rs
• crates/haru-apply/src/relaunch.rs
• crates/haru-ui/src/app.rs
• crates/haru-ui/src/library.rs
• crates/haru-ui/src/settings.rs
• crates/haru-ui/src/theme.rs
• crates/haru/Cargo.toml
• crates/haru/build.rs
• crates/haru/haru.rc
• tapline

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