Cannot render on Linux because of "gtk theme"

[faressoft]

Cannot render on Linux because of "gtk theme"

[oliversturm]

I'm debugging this and I found that Terminalizer escalates these warnings into errors - this will be easy to fix. Whether or not a specific GTK theme actually has issues that may cause trouble is a different question, but there's no reason for Terminalizer to die with errors as a result of warnings that Electron doesn't really care about (as you can easily see by running Electron by itself).

As part of my debugging work I have updated package versions and I'm still seeing some trouble I'm looking into. I'll submit a pull request when I find the solutions.

[oliversturm]

Any updates on this? I see this when I execute terminalizer render recording.yml:

Error: 
  Error: 
(electron:16146): Gtk-WARNING **: 15:56:04.432: Theme parsing error: gtk.css:68:35: The style property GtkButton:child-displacement-x is deprecated and shouldn't be used anymore. It will be removed in a future version

(electron:16146): Gtk-WARNING **: 15:56:04.432: Theme parsing error: gtk.css:69:35: The style property GtkButton:child-displacement-y is deprecated and shouldn't be used anymore. It will be removed in a future version

I don't know where those warnings come from, but they appear harmless - it took me a while to realize that apparently electron thinks they are deadly errors! Can't they be ignored somehow?

Running Ubuntu 18.04.

[jukefr]

There probably is a flag in electron somewhere that tells it to ignore GTK warnings or at least not die when it sees a GTK warning.

[jukefr]

Maybe add some default valid fallback values packaged in the release as a "workaround".

[MaximDevoir]

I was not able to ignore the error and ended up switching to a theme that the program did not complain about. I liked my theme before, but I also needed to run certain applications that would fail to load my GTK theme.

This is not a Terminalizer issue. Nor does it appear to be an Electron issue, but rather a GTK issue or how GTK is configured - based on seeing this warning pop up in non-Electron apps. Fix appears in #66

If the theme is open source, you could file an issue like this person, but the theme still hasn't been updated. Or get lucky and only have 1 or 2 errors that need to be fixed in your gtk.css file like this person. Or be like me: have a thousand deprecation warnings and realize updating the theme to remove those warnings isn't a viable solution.

[miraclx]

The underlying issue is described here
#102

And fixed on PR #97

[bassmanitram]

Hello,

When trying to render on Ubuntu Linux 4.17.11-041711-generic I get the following error :

Theme parsing error: gtk.css:6777:29: Missing opening bracket in color definition

Here is a demo of the issue : https://asciinema.org/a/nrVz5y3NxIXMDL99Y7NrNh90q

I don't really understand how this error makes it impossible for the app to work as I run many other Electron apps on my desktop and have never had such a problem (where the app will simply die for no apparent reason)

The theme file isn't even mine, pretty sure it is a standard theme that came with Ubuntu.

This is closed but for anyone who comes across this, you are probably using a Mac theme of some sort. In my case it is MacBuntu-Sierra-light. The gtk-3.0/gtk.css of that theme has some errors in it:

6777:  text-shadow: 0 0 2px alpha #000, 0.3, 0 1px 2px alpha #000, 0.6;
6779:  -gtk-icon-shadow: 0 0 2px alpha #000, 0.3, 0 1px 2px alpha #000, 0.6;
6785:  box-shadow: 0 0 2px alpha #000, 0.3, 0 1px 2px alpha #000, 0.6;

these should read

6777:  text-shadow: 0 0 2px alpha(#000, 0.3), 0 1px 2px alpha(#000, 0.6);
6779:  -gtk-icon-shadow: 0 0 2px alpha(#000, 0.3), 0 1px 2px alpha(#000, 0.6);
6785:  box-shadow: 0 0 2px alpha(#000, 0.3), 0 1px 2px alpha(#000, 0.6);

Hope that helps