SDRSync v2.3.0

A new Application settings tab for customizing the interface, plus a batch of edge-case fixes found in review.

Added

• Application settings tab: pick a light/dark theme and customize the interface, heading, and frequency-readout fonts (face, weight, style, size) independently, saved via Save → restart confirmation. Every fixed-height chrome band (strip, status bar, section bar, main frame) now scales its own minimum size with the chosen font instead of clipping or collapsing to zero width, and the main window grows to fit real content on a narrow display without crushing controls.
• Tooltip on the Idle disconnect spin control documenting its 0–600 range, the etiquette rationale (freeing a shared WebSDR's listener slot), and that 0 disables it.

Fixed

• RigctldClient now treats a socket EOF as a disconnect instead of an empty reply, and connect() returns false if the post-connect handshake never completes.
• SyncEngine._tick() no longer raises UnboundLocalError when a WebSDR session is active but its driver has already gone None.
• A round of non-finite-frequency hardening (NaN/inf guarded at driver/config boundaries — int(float('nan')) and round(float('inf')) raise, and NaN comparisons silently return false in ways that could make an invalid value look in-range).
• Site auto-detection and click-simulation edge cases found in the same review pass (see matching_driver_types()/click_element_if_present changes).

Changed

• Dropped the second vendored font (Cormorant Garamond) after confirming only the first registered font is visible to a native font-chooser dialog on this wxGTK stack.

551 tests pass; 9 skipped on Windows (Linux-only audio-unlock-click tests, intentionally disabled on that platform).

Windows build: SDRSync-v2.3.0-windows.zip is attached below. Extract and run SDRSync.exe — no installer needed.

Source: SDRSync-v2.3.0-source.zip / SDRSync-v2.3.0-source.tar.gz also attached, alongside GitHub's own auto-generated source archives.