2026-02-22

iv

• ENABLE_HDR_WSI is no longer automatically set by the application. You may set it manually, if you need it.
• Selection tool: Interactive selection rectangle with resize handles.
  • Drag to select image regions.
  • Resize selection by dragging corners/edges.
  • Click to cancel.
  • Visual "marching ants" selection indicator.
• Clipboard support
  • Ctrl+C - Copy selection (or entire image) to clipboard.
  • Ctrl+X - Cut selection to clipboard (fills with black).
  • Ctrl+V - Paste image from clipboard.
  • Tone mapping support when copying HDR images to clipboard and the clipboard destination does not support HDR.
  • HDR images can be transferred if the clipboard destination supports EXR format.
• Save functionality: Ctrl+S saves image to file (PNG for SDR, EXR for HDR)

exrconv

Added a new utility to load a HDR image and save it to disk in EXR format.

moderncore

• Prefer Vulkan drivers supporting HDR. This may result in choosing software rasterizer over e.g. Nvidia driver if Vulkan Wayland HDR WSI Layer is not set up.
• JPEG gain map: Ultra HDR and ISO 21496-1 images can be opened with proper HDR data reconstruction.
• Wide gamut JPEG are now loaded as HDR.
• Use proper white point value when loading HEIF images.
• Boolean values parser is now case insensitive.

Build system

• Added CMake presets (debug, release, static, profile, tsan, coverage)
• Added framework for unit testing and coverage analysis.

2025-04-21

iv

• Escape key closes application.
• Added navigation between multiple images in directory.
• Window maximization state is now saved between sessions.

moderncore

• Image loaders now expect expanded ~ in home paths.
• Significantly improved speed of image format detection.