Prettify changelog (#147)

Author: cbrnr

CHANGELOG.md

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+## [UNRELEASED] · YYYY-MM-DD
+### ✨ Added
+- Use SVG icons with support for light and dark themes
+
+## [0.6.5] · 2026-03-24
+### 🌀 Changed
+- Switch from Qt 5 to Qt 6
+- Switch to CMake
+- Building works again on Windows (in addition to Linux and macOS)
+
+### 🔧 Fixed
+- Fix crash when exporting events to CSV
+- Fix EVT import when sampling rates differ
+
+## [0.6.4] · 2019-04-23
+### ✨ Added
+- Re-enable import/export of events from/to EVT
+
+## [0.6.3] · 2019-03-21
+### 🔧 Fixed
+- Update libxdf (improves stability)
+
+## [0.6.2] · 2018-07-12
+### ✨ Added
+- Store user-defined colors
+- Use effective sample rate in XDF files
+
+### 🌀 Changed
+- Refactoring and code cleanups
+
+### 🔧 Fixed
+- Fix issues in some dialogs
+- Fix channel clipping
+
+## [0.6.1] · 2017-04-26
+### 🌀 Changed
+- Several minor GUI-related improvements
+
+### 🔧 Fixed
+- Fix many XDF-related bugs
+
+## [0.6.0] · 2017-03-09
+### ✨ Added
+- Add support for XDF files
+- Export and import events to/from CSV files
+
+### 🌀 Changed
+- Redesign view options widget
+- New icon theme
+- Switch from Qt 4 to Qt 5
+- Many UI improvements (channel separators, grids, dialogs)
+
+### 🔧 Fixed
+- Properly handle missing data
+
+## [0.5.2]
+### 🌀 Changed
+- Integrate patches from the BioSig project
+
+## [0.5.1]
+### 🌀 Changed
+- Events are now always displayed in a separate tab
+
+### 🗑️ Removed
+- Remove libgdf
+- Remove downsampling/decimation
+
+### 🔧 Fixed
+- Fix bug where signals could be distorted
+- Fix file drag & drop bug
+
+## [0.5.0]
+### 🌀 Changed
+- Optimize GDF reading (background downsampling/decimation)
+- Support for large GDF2 files
+- Use libgdf to read GDF2 files
+
+### 🔧 Fixed
+- Fix memory leak
+
+## [0.4.3]
+### 🌀 Changed
+- Switch to new libgdf
+- Remove dependency on boost library (only headers are needed)
+
+### 🔧 Fixed
+- Fix crash on Windows XP when deselecting channels
+
+## [0.4.2]
+### ✨ Added
+- Convert to GDF (using libgdf)
+- Command-line options (e.g. `--convert-to-gdf`, `--help`)
+- Improve y-grid drawing
+- Improve y-grid labels (displaying units)
+- Improve y-scaling, new dialog
+
+### 🌀 Changed
+- Power spectrum is now displayed in log10
+- Switch from FFTW to FFTReal
+- Refactoring and code cleanups
+
+### 🔧 Fixed
+- Fix instant viewport update after color changing and scaling
+- Fix crash when signal processing leads to overflow
+
+## [0.4.1]
+### ✨ Added
+- Animated event browsing
+- Reset event colors
+- Setting default channel color
+
+### 🌀 Changed
+- Speed up animations (duration is now settable via the View menu)
+- Rename "Shift Signal Mode" to "View Options Mode"
+
+### 🔧 Fixed
+- Fix various bugs
+
+## [0.4.0]
+### ✨ Added
+- Animated zoom
+- Export to GDF
+- Export to PNG
+- Calculate power spectrum averaged over an event type
+- Calculate mean and standard deviation averaged over an event type
+- Color settings for signal channels
+- Mode-specific widgets (for editing selected events)
+- New context menu for channels
+
+### 🌀 Changed
+- Works on macOS again
+- Improve dialogs (event table, event type selection)
+- Refactoring and code clean-ups
+
+### 🔧 Fixed
+- Fix many bugs
+
+## [0.3.0]
+### ✨ Added
+- Drop files on SigViewer to open them
+- Open files via command line parameter
+- Event toolbar (for editing selected events)
+- Calculate mean (alpha version)
+- Undo/redo for editing events
+- Insert event (Ctrl+I), creates new event over the selected event
+- Event browsing (Ctrl+Right, Ctrl+Left), go to next/previous event of same type as selected event
+- Fit view to selected event
+- Hide events of other type
+- Highlight on x-axis when editing or creating an event
+- New context menu for events
+- Simple hiding/showing of label and axis widgets
+
+### 🌀 Changed
+- Remove all Qt 3 code, now completely ported to Qt 4
+- Refactoring and code clean-ups (especially decoupling of classes)
+
+### 🔧 Fixed
+- Fix many bugs
+
+## [0.2.6]
+### ✨ Added
+- Qt Creator support
+- Signal buffer options (whole subsampling selection, disable initial min-max search)
+
+### 🌀 Changed
+- Clean up code in biosig_reader.cpp
+
+### 🔧 Fixed
+- Fix many bugs related to loading files (including slow loading over Windows network shares)
+
+## [0.2.5]
+### ✨ Added
+- Preferences dialog
+
+### 🌀 Changed
+- Remove some Qt 3 code
+
+## [0.2.4]
+### ✨ Added
+- Update biosig4c++ to support more file formats
+
+## [0.2.3]
+### ✨ Added
+- Improve support for BCI2000 1.1 data format
+
+## [0.2.2]
+### ✨ Added
+- Add new file formats (BCI2000, MIT/Physiobank)
+- Improve handling of some file formats (EDF+, GDF1, BrainVision, AINF)
+
+### 🔧 Fixed
+- Fix export and import of EVT files
+- Fix missing file name in window title
+
+## [0.2.1]
+### 🔧 Fixed
+- Fix CNT and VHDR errors
+
+## [0.2.0]
+### ✨ Added
+- Add support for biosig4c++; loading and saving is now done with this library, supporting many new formats (GDF, BKR, CNT, EDF, ...)
+- Scrolling during event creation is now possible
+- Support for big-endian machines (e.g. PPC)
+
+### 🌀 Changed
+- Standard zoom setting is now auto
+- Zero level on the y-axis is now in the middle of the channel window
+
+### 🔧 Fixed
+- Fix channel selection
+
+## [0.1.7]
+### 🔧 Fixed
+- Fix export of EVT files with a sampling rate higher than 256 Hz
+
+## [0.1.6]
+### 🔧 Fixed
+- Fix crash when opening a file (probably due to a Windows update)
+
+## [0.1.5]
+### 🔧 Fixed
+- Fix crash on exit
+
+## [0.1.4]
+### 🔧 Fixed
+- Fix bug in SignalBuffer
+
+## [0.1.3]
+### ✨ Added
+- y-axis
+
+### 🌀 Changed
+- Replace SettingsManager with QSettings
+
+## [0.1.2]
+### ✨ Added
+- Status bar with length, number of channels, and number of trials
+- Export events to EVT files
+- Show all channels after opening a file
+
+### 🔧 Fixed
+- Fix signal shift bug
+- Fix channel selection having no effect on scale
+
+## [0.1.1]
+### 🌀 Changed
+- Use QString and Qt containers instead of STL
+
+### 🔧 Fixed
+- Fix line wrap in LogDialog