Inno Setup 6.5.2

What's new in this version:

Improved graphics:
- It's now possible to use .png files in Setup and Uninstall, and use of transparency has been increased
- Added support for .png files to [Setup] section directives WizardImageFile and WizardSmallImageFile
- Improved support for stretching 32-bit .bmp files with transparency
- The built-in wizard images and icons now have transparent backgrounds, allowing their background colors to be customized again using Setup section directives WizardImageBackColor and WizardSmallImageBackColor, which are no longer obsolete
- The default values of these directives match previously used colors, so the appearance of all images and icons remains unchanged by default
- Pascal Scripting
- Added new TPngImage support class
- Added new PngImage property to support classes TBitmapButton and TBitmapImage

Removed main size limits:
- The size limit of 2 GB for a single Setup.exe and for disk slices has been removed
- The maximum size for a single Setup.exe without disk spanning has increased from almost 2 GB to nearly 4 GB, which is near the maximum Windows supports
- However, disk spanning is still recommended for large executables due to slow startup times imposed by Windows, especially when the executables are digitally signed
- With disk spanning enabled, the maximum disk slice size has been increased from almost 2 GB to effectively unlimited (9223 PB)
- The default disk slice size is still 2100000000, which is almost 2 GB. To update, you can simply set [Setup] section directive DiskSliceSize to max

Improved downloading and archive extraction:
- All download functionality now supports TLS 1.3 when available. Support for TLS 1.0 and 1.1 has been removed on all versions of Windows
- Archive extraction now supports the RAR5 format. Requires Setup section directive ArchiveExtraction to be set to full
- Compiler IDE: The New Script Wizard and the Generate [Files] Entries tool now support adding files to be downloaded. They will prompt you if the downloaded file is an archive that should be extracted
- Fix: Using [Files] section flags download and extractarchive on an entry that also has a Tasks parameter now works as expected

Other changes:
Compiler IDE:
- Added new Automatically reload files and Allow Undo after reload options. Both are enabled by default, consistent with most other modern editors, and improving integration with tools like Claude Code
- Added dark mode support for command line options /cc and /wizard
- Pascal Scripting: Added new HighContrastActive and LogFmt support functions
- Minor tweaks and fixes