{"id":5913,"date":"2012-09-12T16:03:56","date_gmt":"2012-09-12T21:03:56","guid":{"rendered":"http:\/\/mjtsai.com\/blog\/?p=5913"},"modified":"2012-09-12T16:06:16","modified_gmt":"2012-09-12T21:06:16","slug":"oldiconutil","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2012\/09\/12\/oldiconutil\/","title":{"rendered":"oldiconutil"},"content":{"rendered":"<p><a href=\"https:\/\/github.com\/uliwitness\/oldiconutil\">Uli Kusterer<\/a>:<\/p>\n<blockquote cite=\"https:\/\/github.com\/uliwitness\/oldiconutil\"><p>In Mac OS X 10.6, Apple introduced support for PNG-compressed icon data in .icns files. In Mac OS X 10.8, Apple introduced support for Retina icons and the iconutil command-line tool for generating icons from a folder of PNG files.<\/p>\n<p>However, iconutil only knows how to generate PNG-compressed icon data, which means that you can't use it to create a Retina icon that will still display properly on Mac OS X 10.5.<\/p><\/blockquote>\n<p>He&rsquo;s written some code that converts .icns files to use JPEG 2000 internally instead of PNG, which makes them readable on Mac OS X 10.5. Kudos to Kusterer for figuring this out, and shame on Apple for silently breaking compatibility.<\/p>","protected":false},"excerpt":{"rendered":"<p>Uli Kusterer: In Mac OS X 10.6, Apple introduced support for PNG-compressed icon data in .icns files. In Mac OS X 10.8, Apple introduced support for Retina icons and the iconutil command-line tool for generating icons from a folder of PNG files. However, iconutil only knows how to generate PNG-compressed icon data, which means that [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"","apple_news_api_id":"","apple_news_api_modified_at":"","apple_news_api_revision":"","apple_news_api_share_url":"","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[73,75,30,74],"class_list":["post-5913","post","type-post","status-publish","format-standard","hentry","category-technology","tag-icns","tag-developertool","tag-mac","tag-opensource"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/5913","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=5913"}],"version-history":[{"count":4,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/5913\/revisions"}],"predecessor-version":[{"id":5917,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/5913\/revisions\/5917"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=5913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=5913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=5913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}