Can't Change Icon Themes

[JBaby]

I'm trying to change icon themes from Highlights to Flat Design. The icons download, but they aren't being applied. I'm on macOS 15.3.2 and Calibre 8.1.1. I tried restarting both Calibre and my iMac and neither worked.

[kovidgoyal]

Note that on macOS you cannot change the application icon any more, but all the remaining icons change fine.

[JBaby]

Originally Posted by kovidgoyal

Note that on macOS you cannot change the application icon any more, but all the remaining icons change fine.

I don’t want to change the application icon. I’ve never even tried to do that. I want to change the icon theme within Calibre and that most definitely isn’t changing for me at all. I can’t even set it back to the default icon theme. Here’s a screen recording.

https://imgur.com/a/Kfg6EQU

[kovidgoyal]

Works for me, tested on macOS even. Try running calibre in debug mode that might show us what error if any is happening for you

[dunhill]

Originally Posted by JBaby

I don’t want to change the application icon. I’ve never even tried to do that. I want to change the icon theme within Calibre and that most definitely isn’t changing for me at all. I can’t even set it back to the default icon theme. Here’s a screen recording.

https://imgur.com/a/Kfg6EQU

Try restarting calibre to see if the icons change.

[JBaby]

Originally Posted by kovidgoyal

Works for me, tested on macOS even. Try running calibre in debug mode that might show us what error if any is happening for you

Have I done this correctly?

Last login: Sun Mar 30 17:36:22 on ttys000
jessi@iMac-2 ~ % cd /Applications/calibre.app/Contents/MacOS
jessi@iMac-2 MacOS % ./calibre-debug --gui
calibre 8.1.1  embedded-python: True
macOS-15.3.2-arm64-arm-64bit Darwin ('64bit', '')
('Darwin', '24.3.0', 'Darwin Kernel Version 24.3.0: Thu Jan  2 20:24:23 PST 2025; root:xnu-11215.81.4~3/RELEASE_ARM64_T8122')
Python 3.11.5
OSX: ('15.3.2', ('', '', ''), 'arm64')
Interface language: None
EXE path: /Applications/calibre.app/Contents/MacOS/calibre-debug
Successfully initialized third party plugins: DeACSM (0, 0, 16) && Gather KFX-ZIP (from KFX Input) (2, 22, 0) && DeDRM (10, 0, 9) && Package KFX (from KFX Input) (2, 22, 0) && Comicvine (0, 14, 2) && Count Pages (1, 13, 6) && Embed Comic Metadata (1, 6, 6) && EpubSplit (3, 10, 0) && Extract ISBN (1, 6, 5) && Goodreads (1, 8, 2) && Goodreads Sync (1, 16, 11) && KFX metadata reader (from KFX Input) (2, 22, 0) && From KFX (2, 22, 0) && KFX Input (2, 22, 0) && Set KFX metadata (from KFX Output) (2, 14, 0) && KFX Output (2, 14, 0) && Kindle hi-res covers (0, 5, 1) && Manage Series (1, 5, 2) && Modify ePub (1, 8, 6) && Quality Check (1, 14, 1) && Reading List (1, 15, 4) && Resize Cover (1, 2, 1) && Smashwords Metadata (1, 0, 2) && Standard Ebooks (1, 0, 0)
QPA platform: cocoa
devicePixelRatio: 2.0
logicalDpi: 72.0 x 72.0
physicalDpi: 93.50000140422914 x 93.50000140422914
ApplicationPaletteChange event ignored
Using calibre Qt style: True
[0.00] Starting up...
[0.02] Showing splash screen...
[1.17] splash screen shown
[1.17] Initializing db...
[1.21] db initialized
[1.21] Constructing main UI...
qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile
[1.81] GUI main window shown
[1.90] main UI initialized...
[1.90] Hiding splash screen
[1.90] splash screen hidden
[1.90] Started up in 1.90 seconds with 335 books
2025-03-30 17:40:10.011 calibre-debug[37170:726410] +[IMKClient subclass]: chose IMKClient_Modern
2025-03-30 17:40:10.011 calibre-debug[37170:726410] +[IMKInputSession subclass]: chose IMKInputSession_Modern
[588.67] Shutdown starting...
[590.93] Shutdown complete, quitting...
jessi@iMac-2 MacOS %

[JBaby]

Originally Posted by dunhill

Try restarting calibre to see if the icons change.

Thanks, but tt didn't work. Says it's Flat Design, but those icons are still Highlights.

https://imgur.com/a/cr2Nvv1

[kovidgoyal]

Did you try changing the icon theme while running in debug mode?

In any case you most likely have a manually overriden set fo icons. Try deleteing

~/Library/Preferences/calibre/resources/images

[JBaby]

Originally Posted by kovidgoyal

Did you try changing the icon theme while running in debug mode?

In any case you most likely have a manually overriden set fo icons. Try deleteing

~/Library/Preferences/calibre/resources/images

Deleting the images folder worked! Thanks so much!

[JBaby]

I’m sad to say that deleting the images folder no longer works.