I've just installed pinta on archlinux (up to date) because I need a simple tool. But the application is crashing (completely close) after I select some region and applied some effect from menu. Here is what I can see on terminal output:
Marshaling activate signal
Pinta: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
---> GLib.GException: L’icône « go-previous » n’est pas présente dans le thème Adwaita
at Gtk.IconTheme.LoadIcon(String icon_name, Int32 size, IconLookupFlags flags)
at Pinta.Core.GtkExtensions.LoadIcon(IconTheme theme, String icon_name, Int32 size)
at Pinta.Gui.Widgets.HScaleSpinButtonWidget.Build()
at Pinta.Gui.Widgets.HScaleSpinButtonWidget..ctor()
at Pinta.Gui.Widgets.SimpleEffectDialog.CreateSlider(String caption, Object o, MemberInfo member, Object[] attributes)
at Pinta.Gui.Widgets.SimpleEffectDialog.BuildDialog(IAddinLocalizer localizer)
at Pinta.Gui.Widgets.SimpleEffectDialog..ctor(String title, Pixbuf icon, Object effectData, IAddinLocalizer localizer)
at Pinta.EffectHelper.LaunchSimpleEffectDialog(BaseEffect effect, IAddinLocalizer localizer)
at Pinta.EffectHelper.LaunchSimpleEffectDialog(BaseEffect effect)
at Pinta.Effects.UnfocusEffect.LaunchConfiguration()
at Pinta.Core.LivePreviewManager.Start(BaseEffect effect)
at Pinta.Core.EffectsManager.<>c__DisplayClass4_0.<RegisterEffect>b__0(Object o, ActivatedArgs args)
at Pinta.Core.Command.<.ctor>b__33_0(Object o, ActivatedArgs args)
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle.InvokeMethod(Object target, Span`1& arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at GLib.Signal.ClosureInvokedCB(Object o, ClosureInvokedArgs args)
at GLib.SignalClosure.MarshalCallback(IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
GLib.GException: L’icône « dialog-error » n’est pas présente dans le thème Adwaita
at Gtk.IconTheme.LoadIcon(String icon_name, Int32 size, IconLookupFlags flags)
at Pinta.Core.GtkExtensions.LoadIcon(IconTheme theme, String icon_name, Int32 size)
at Pinta.ErrorDialog.Build()
at Pinta.ErrorDialog..ctor(Window parent)
at Pinta.MainWindow.<>c.<OnActivated>b__6_0(Window parent, String message, String details)
at Pinta.Core.ChromeManager.ShowErrorDialog(Window parent, String message, String details)
at Pinta.MainClass.ExceptionManager_UnhandledException(UnhandledExceptionArgs args)
at GLib.ExceptionManager.RaiseUnhandledException(Exception e, Boolean is_terminal)
That looks like a missing icon .. do you have any custom GTK icon themes etc installed? (or are missing the Adwaita or hicolor icon theme packages)