New version 2.18.33 released.

Changelog

• Added: the decoder for FLI/FLC image format.
• Added: new option in the Settings dialog to choose the grayscale conversion formula.
• Added: new mp4 compression option for the AVI format(*).
• Added: new option in the Change bit depth dialog to convert the image to a custom number of colors.
• Added: new option in the Change bit depth dialog to apply Floyd-Steinberg dithering during color reduction to 2-256 colors.
• Changed: FreeImage library updated to the 3.19.1 version(**);
• Changed: the Convert to grayscale command is now in the Tools menu.
• Changed: now the Undo command can be used also for the Flip horizontal, Flip vertical and Rotate 90° commands.
• Changed: replaced the Exclude selected command in the copy menu with the new Cut command.
• Changed: code optimizations.
• Changed: minor UI updates.
• Fixed: crash after Swap color channels command for 16 bits per pixel images.
• Fixed: crash switching to/from fullscreen when no image is displayed.
• Fixed: the drag and drop is disabled when the palette manager is displayed.
• Fixed: the image is not composed properly when using the zip format with the Remove background command.
• Fixed: incorrect Original Color Format value displayed in the image properties dialog for multipage images.
• Fixed: incorrect Current Color Format value displayed in the image properties dialog for multipage TIFF images.
• Fixed: the undo command does not work properly for multi-format animated cursor files.
• Fixed: background color not applied to indexed images when increasing bit depth.

(*)  Requires an mp4 codec installed in the system.

(**) This is a custom build of the FreeImage library based on the official 3.19.0 trunk but with the following changes:

• ZLib 1.3.
• LibPNG 1.6.40.
• LibTIFF 4.6.0.
• LibWebP 1.3.2.
• LibRaw 0.21.2.
• LibJPEG 9e.
• FreeImage_ConvertTo8Bits and FreeImage_ConvertTo4Bits now return 8 and 4 bits indexed color images.
• Fixed: infinite loop bug in Load function of the PluginTIFF.
• Fixed: DDS not handled properly for images that are not a multiple of 4 in size (thanks to Takashi Sawanaka).

You can download the source code from the link below. The precompiled dll is in the lib subfolder in the dView zip file.

FreeImage-dView