Great feedback, thanks. Regardless of which proposed changes will get adopted I would like to express a strong desire for the directory structure to remain unchanged.
Waldo Bastian Linux Client Architect - Client Linux Foundation Technology Channel Platform Solutions Group Intel Corporation - http://www.intel.com/go/linux OSDL DTL Tech Board Chairman >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:xdg- >[EMAIL PROTECTED] On Behalf Of Pascal De Vuyst >Sent: Wednesday, June 07, 2006 2:58 PM >To: [email protected] >Subject: Please improve/clarify the Icon Theme Specification > >Please clarify the Icon Theme Specification for the points mentioned below. > >Please mention that "Directories" are searched from left to right for >first match. The same applies for Inherits. This is not clear now. > >Clarify what Type=Threshold means. > >If I understand correctly this is used to match icon sizes that differ >plus or minus the Threshold value from the requested size. > >This is best illustrated with the KDE versus GNOME menu icons. >GNOME uses 24x24 pixel menu icons and KDE 22x22 pixel menu icons. >Let's say we have a KDE icon theme with 22x22/apps icons that would be >used in GNOME. For the 22x22/apps directory Type=Treshold is set with >the default Treshold value of 2 pixels. This icon directory would match >the requested size of 24 pixels for the GNOME menu. It is not clear in >the current specification how the implementation would handle the 22x22 >to 24x24 pixel transformation. The best way would be to add a 1px >transparant padding border around the 22x22 icon creating a 24x24 icon >(this is also suggested by tango project). The current implementation >for GNOME seems to upscale the 22x22 icon to 24x24, this makes the icon >look very blurry. I think the padding is a better solution and this >should be suggested in the specification. > >Now look at the other side and say we have a GNOME icon theme with >24x24/apps icons that would be used in KDE. For the 24x24/apps directory >Type=Treshold is set with the default Treshold value of 2 pixels. This >icon directory would match the requested size of 22 pixels for KDE menu. >It is not clear in the current specification how the implementation >would handle the 24x24 to 22x22 pixel transformation. Most icons have >some free space around the icon, the best way would be to remove a 1px >border from the 24x24 icon creating a 22x22 icon (clipping). If the >icons don't have enough free space for clipping it, it should be >downscaled to 22x22 pixels. This should be suggested in the specification. > >Please mention that the Threshold value is in pixel size, in the current >explanation you could think it is some kind of scaling factor. > >Context=Applications is listed under section Example but not described >under section Context. It would be better to refer to the Contexts and >directory names described in the Icon Naming Specification or include >this also in the Theme Specification. The directory structure should be >part of the Icon Theme Specification. > >The current specification suggests that 3rd party application icons >should be in the hicolor fallback theme. >I have the following issue related to this: >Currently I have gnome installed with some extra KDE apps. By installing >the KDE apps the default KDE icon theme (crystalsvg) is also installed. >The standard theme inherit order used by GNOME seems to be: >Inherits=default.gnome,default.kde,hicolor. Use of default.kde makes >sense since we want to see the KDE icons for the installed KDE apps. >Now the problem is default.kde contains icons for third party >applications, e.g. gaim. This means that when I select for instance the >Tango icon theme that doesn't have an gaim icon, it falls back to the >default.kde icon for gaim. This is unexpected, I would expect to see the >gaim icon from hicolor fallback theme in my GNOME installation. >Changing the standard theme inherit order for GNOME to: >Inherits=default.gnome,hicolor,default.kde,default.xfce would solve this >problem. According to the icon theme specification hicolor should always >be the last fallback theme, these multi desktop environment issues >should be adressed in the icon theme specification. > >Some remarks about hicolor icon theme. > >The specification doesn't say anything about the use of Type=Scalable >for bitmap icons it only suggests at least a 48x48 png icon. A 48x48 png >icon could be provided for an application and Type=Scalable in >combination with MinSize and MaxSize would allow this icon to be scaled >down. For the hicolor fallback theme this would be enough. > >Therefore /usr/share/icons/hicolor/index.theme should be changed to >contain the following: > >[bitmap/48x48/apps] >Size=48 >Type=Scalable >MinSize=16 >MaxSize=48 > >This will make 48x48 png application icons downscalable to 16x16 pixels >for window list icons, to 24x24 for GNOME menus and panel icons and to >22x22 for KDE. >There is no need to provide 16x16, 22x22 or 24x24 versions in the theme >when they are just downscales of the 48x48 icon, the downscaling could >be done by the implementation and gives the same result. > >Currently if I look in hicolor icon theme scalable/apps directory in my >GNOME distribution I see some 3rd party applications provide svg with >48x48 nominal size and other svg with 128x128 nominal size. >The problem with this is that 48x48 icons appear to small on the desktop >because of the wrong Size=128 indication. > >To address this I think the (sub)directory structure should be changed to: ><icon type>/<nominal size>/<category>/<subcategory> > ><icon type> = "bitmap" for png/xpm or "scalable" for svg/svgz. ><nominal size> = nominal size of png/pxm or svg in format width x height >without spaces, e.g. 48x48. ><category> = apps, filesystems, ... > >The <nominal size> indication will make it easier for people to respect >the nominal size for icons in the directory and therefore will avoid >wrong scaling on the desktop. >The (sub)directory structure would make the Size key optional since the >size can be found in the <nominal size> subdirectory name. > >As example, this should be included in hicolor icon theme: > >[scalable/48x48/apps] >Size=48 >Type=Scalable >MinSize=16 >MaxSize=256 > >[scalable/128x128/apps] >Size=128 >Type=Scalable >MinSize=16 >MaxSize=256 > >Thanks in advance, >Pascal De Vuyst >_______________________________________________ >xdg mailing list >[email protected] >http://lists.freedesktop.org/mailman/listinfo/xdg _______________________________________________ xdg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xdg
