I use TiddlyDesktop with Linux. One of my plugins is TiddlyTools Calendar. When I open my wiki in my browser the calendar icon in the View toolbar is different than when I open the same wiki in TiddlyDesktop.
In particular, I can see a calendar icon when the wiki is opened in my browser, but no icon, just a small rectangle, when the wiki is opened in TiddlyDesktop.
P.S. I don’t know how to upload related images to show what I mean.
TiddlyTools/Time/ToolbarCalendar uses a Unicode character emoji (📅 - see https://emojipedia.org/calendar#technical) to display the calendar “icon” in the toolbar.
If the environment you are using (e.g. TiddlyDesktop) doesn’t support the necessary extended Unicode character set, this emoji character will appear as a small rectangle “placeholder” symbol. According to the emojipedia.org link above, the Calendar emoji was approved as part of Unicode 6.0 in 2010 and added to Emoji 1.0 in 2015, so I had simply assumed that it would be safe to use in virtually all modern applications.
Unfortunately, I dont use TiddlyDesktop (nor Linux), so I can’t test/debug to try and find a fix.
As a workaround, you could try creating/adding an SVG tiddler that displays a suitable calendar image, and then replace the unicode references in TiddlyTools/Time/ToolbarCalendar (in the text AND caption fields) with a transclusion of the added SVG image tiddler.
Of course, the “proper” fix would be to make TiddlyDesktop correctly handle use of Unicode character emojis.
-e
Thank you for your reply. I can confirm that there is no problem with TiddlyDesktop in Windows. I don’t know how to make my working environment support the Unicode character set that would make TiddlyDesktop work properly. I’ll leave it at that or perhaps stop using TiddlyDesktop altogether.