Terry J. Reedy <tjre...@udel.edu> added the comment:
Here is the current code in idlelib.pyshell.main.
# set application icon
icondir = os.path.join(os.path.dirname(__file__), 'Icons')
if system() == 'Windows':
iconfile = os.path.join(icondir, 'idle.ico')
root.wm_iconbitmap(default=iconfile)
else:
ext = '.png' if TkVersion >= 8.6 else '.gif'
iconfiles = [os.path.join(icondir, 'idle_%d%s' % (size, ext))
for size in (16, 32, 48)]
icons = [PhotoImage(master=root, file=iconfile)
for iconfile in iconfiles]
root.wm_iconphoto(True, *icons)
IDLE uses wm_iconbitmap on Windows and wm_iconphoto with PhotoImages from .gif
or .png on everything else. It appears that wm_iconphoto is already used on
macOS with tk 8.5.
The uploaded PM.png looks like it might be idle16.png zoomed out at least 3x.
Anything that does that instead of using the much sharper 32 or 48 bit versions
is, to me, buggy. The bigger images stay much sharper even when zoomed.
----------
nosy: +ned.deily
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue32129>
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