PNG itself does not support animation at all. MNG is an extension to PNG that does; it was designed by members of the PNG Group. Icon files used on MAc computers and other OS X devices use the file extension ICNS. These icon files are used to display a small image (icon) in the OSX Finder or dock, representative for an application which it is. Step 1 - Click the “Choose PNG” button to upload your PNG files. Step 2 - Open 'Advanced Settings' and select an Icon format from “Format and Size” drop-down list Step 3 - Click on the blue “Convert” button to start the conversion. Download all the folder icons you need. Choose between 134,325 icons in both vector SVG and PNG format.
It is very easy to create a custom icon for any file or folder on your Mac. Changing the appearance of different file or folder icons will help you easily locate and identify your files and folders.
Do you see wrong document icons instead of the icon associated with the app / file etc? Sometimes, the icons for your files and folders may appear as generic white documents (blank page image with folded down corner). Sometimes, not all, but some of your folder icons may appear as generic document icons. Some users said that this problem they discovered this problem after upgrading to the latest version of macOS. If you are having this problem, this article teaches you how you can restore your icons.
How to fix Mac file icon problem
Autodesk maya 2018 software. Please try each step until your issue is fixed.
1. Update your Mac if there is an update available.
2. The first thing you should try is to restart your Mac in Safe Mode. This will do some system cache cleaning and that may solve your issue. Here is how:
- Turn off your Mac
- Turn on your Mac and immediately press and hold the Shift key
- Release the key when you see the login screen
- Enter your password to log in (you may have to log in a few times)
- Now you are in Safe Mode.
- Are your file icons still generic? Either case, restart your Mac. This time start your Mac normally, without pressing the Shift key.
3. If you are still having this problem, try the steps below. Here is how:
- Open the Terminal app (Applications / Utilities) and enter the following command:
- Press enter
- It may take some time, wait for the cursor to return normal.
- And then restart your Mac.
4. If Safe Mode does not work, let’s try to rebuild macOS’s Launch Services. This is because what Launch Services do is to manage app and document associations. Here is how:
- Open the Terminal app. (Applications / Utilities, or you can use Spotlight)
- Enter the following command and hit enter:
- It may take a few minutes so just wait.
- When it is done, restart your Mac
5. If you are having this problem with apps, meaning if you see generic icons for some apps, here is what you can do:
- Go to Finder
- Click Go and then Go to Folder
- Type the following command and then hit go
- ~/Library/Caches/com.apple.finder/Cache.db
- Drag Cache.db to the Trash and then restart your Mac.
![Macbook Macbook](https://icon-library.com:443/images/rar-icon/rar-icon-12.jpg)
If you are still having issues, contact Apple Support.
Filename extension | |
---|---|
Type code | icns |
Uniform Type Identifier (UTI) | com.apple.icns |
Developed by | Apple Inc. |
Type of format |
Png File Free Download
The Apple Icon Image format is the icon format used in Apple Inc.'s macOS. It supports icons of 16 × 16, 32 × 32, 48 × 48, 128 × 128, 256 × 256, 512 × 512 points at 1x and 2x scale, with both 1- and 8-bitalpha channels and multiple image states (example: open and closed folders). The fixed-size icons can be scaled by the operating system and displayed at any intermediate size.
File structure[edit]
The file format consists of an 8 byte header, followed by any number of icons.
Header[edit]
Offset | Size | Purpose |
---|---|---|
0 | 4 | Magic literal, must be 'icns' (0x69, 0x63, 0x6e, 0x73) |
4 | 4 | Length of file, in bytes, msb first |
Icon data[edit]
Offset | Size | Purpose |
---|---|---|
0 | 4 | Icon type, see OSType below. |
4 | 4 | Length of data, in bytes (including type and length), msb first |
8 | Variable | Icon data |
Compression[edit]
lead value | tail bytes | result uncompressed |
---|---|---|
0…127 | 1…128 | 1…128 bytes |
128…255 | 1 byte | 3…130 copies |
Over time the format has been improved and there is support for compression of some parts of the pixel data. The 32-bit ('is32', 'il32', 'ih32','it32') and ARGB ('ic04', 'ic05') pixel data are often compressed (per channel) with a format similar to PackBits.[1]Some sources mentioned that the OS supports both compressed or uncompressed data chunks. https://hoppernew150.weebly.com/blog/ipass-open-mobile-client-mac-download.
The following pseudocode decompresses the data:
![Icon File Format Mac Download Png Icon File Format Mac Download Png](/uploads/1/2/6/7/126752615/940992873.png)
Example:
02 01 02 02 80 03 81 04 82 05
should decompress to 01 02 02 03 03 03 04 04 04 04 05 05 05 05 05
Icon types[edit]
OSType | Length (bytes) | Size (pixels) | Supported OS Version | Description |
---|---|---|---|---|
ICON | 128 | 32 | 1.0 | 32×32 1-bit mono icon |
ICN# | 256 | 32 | 6.0 | 32×32 1-bit mono icon with 1-bit mask |
icm# | 48 | 16 | 6.0 | 16×12 1 bit mono icon with 1-bit mask |
icm4 | 96 | 16 | 7.0 | 16×12 4 bit icon |
icm8 | 192 | 16 | 7.0 | 16×12 8 bit icon |
ics# | 64 (32 img + 32 mask) | 16 | 6.0 | 16×16 1-bit mask |
ics4 | 128 | 16 | 7.0 | 16×16 4-bit icon |
ics8 | 256 | 16 | 7.0 | 16x16 8 bit icon |
is32 | varies (768) | 16 | 8.5 | 16×16 24-bit icon |
s8mk | 256 | 16 | 8.5 | 16x16 8-bit mask |
icl4 | 512 | 32 | 7.0 | 32×32 4-bit icon |
icl8 | 1,024 | 32 | 7.0 | 32×32 8-bit icon |
il32 | varies (3,072) | 32 | 8.5 | 32x32 24-bit icon |
l8mk | 1,024 | 32 | 8.5 | 32×32 8-bit mask |
ich# | 288 | 48 | 8.5 | 48×48 1-bit mask |
ich4 | 1,152 | 48 | 8.5 | 48×48 4-bit icon |
ich8 | 2,304 | 48 | 8.5 | 48×48 8-bit icon |
ih32 | varies (6,912) | 48 | 8.5 | 48×48 24-bit icon |
h8mk | 2,304 | 48 | 8.5 | 48×48 8-bit mask |
it32 | varies (49,152) | 128 | 10.0 | 128×128 24-bit icon |
t8mk | 16,384 | 128 | 10.0 | 128×128 8-bit mask |
icp4 | varies | 16 | 10.7 | 16x16 icon in JPEG 2000 or PNG format |
icp5 | varies | 32 | 10.7 | 32x32 icon in JPEG 2000 or PNG format |
icp6 | varies | 64 | 10.7 | 64x64 icon in JPEG 2000 or PNG format |
ic07 | varies | 128 | 10.7 | 128x128 icon in JPEG 2000 or PNG format |
ic08 | varies | 256 | 10.5 | 256×256 icon in JPEG 2000 or PNG format |
ic09 | varies | 512 | 10.5 | 512×512 icon in JPEG 2000 or PNG format |
ic10 | varies | 1024 | 10.7 | 1024×1024 in 10.7 (or 512x512@2x 'retina' in 10.8) icon in JPEG 2000 or PNG format |
ic11 | varies | 32 | 10.8 | 16x16@2x 'retina' icon in JPEG 2000 or PNG format |
ic12 | varies | 64 | 10.8 | 32x32@2x 'retina' icon in JPEG 2000 or PNG format |
ic13 | varies | 256 | 10.8 | 128x128@2x 'retina' icon in JPEG 2000 or PNG format |
ic14 | varies | 512 | 10.8 | 256x256@2x 'retina' icon in JPEG 2000 or PNG format |
ic04 | varies | 16 | 16x16 ARGB | |
ic05 | varies | 32 | 32x32 ARGB | |
icsB | varies | 36 | 36x36 | |
icsb | varies | 18 | 18x18 |
- the values inside the brackets () in the length column is the uncompressed length.
- the ARGB format consists of the ascii values for 'ARGB' and the four compressed channels tightly packed
Other types[edit]
OSType | Length (bytes) | Description |
---|---|---|
'TOC ' | varies | 'Table of Contents' a list of all image types in the file, and their sizes (added in Mac OS X 10.7) |
'icnV' | 4 | 4-byte big endian float - equal to the bundle version number of Icon Composer.app that created to icon |
'name' | Unknown | |
'info' | 259 | Info binary plist. Usage unknown |
Support[edit]
Various image viewers can load *.icns files, and free and open source converters from or to PNG also exist.[2][3]GTK+ can load *.icns resources since 2007.[4] Other tools supporting the format include the Apple Icon Composer and icns Browser, The Iconfactory, and IconBuilder.
MacOS[clarification needed] offers the built-in
MacOS[clarification needed] offers the built-in
iconutil
command line tool to pack and unpack *.icns files.External links[edit]
- IconFamily – Open source Objective C class to read and write Apple icns files
- osxiconutils - Command line tools to work with Apple icns files
See also[edit]
- ICO format on Windows
- X PixMap format for X11
References[edit]
- ^Macintosh Icons
- ^'libicns'. SourceForge project icns. 2009. Retrieved August 18, 2016.
- ^'png2icns'. Moin Uddin. 2016. Retrieved May 25, 2017.
- ^Lyonel Vincent (2007). 'Mac OS X icons for GTK+'. Retrieved August 18, 2016.
Png File Format Specification
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Apple_Icon_Image_format&oldid=976274378'