I think these are two separate issues. I'm not sure about the org.ally.Bus name problem, but the "failed to parse css file" errors can be fixed by the attached patch, which corrects the malformed CSS is the theme files.
Note that almost none of the included xfce4-notify themes work properly (on my box, at least) without correcting this issue. ,,,,,Ron Murray -- Ron Murray <murr...@dor.state.ma.us> PGP Fingerprint: 5A26 A211 68D9 E5AA 176A 1AA3 7A89 5E0B 040A 7431 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager at postmaster at dor.state.ma.us. **********************************************************************
diff -uNr xfce4-notifyd-0.3.3/themes/gtk-3.20/Bright/gtk.css xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/Bright/gtk.css --- xfce4-notifyd-0.3.3/themes/gtk-3.20/Bright/gtk.css 2016-09-11 06:46:53.000000000 -0400 +++ xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/Bright/gtk.css 2016-10-20 13:39:59.984634826 -0400 @@ -15,11 +15,11 @@ } #XfceNotifyWindow label#summary { - font: Bold; + font-weight: Bold; } #XfceNotifyWindow button { - font: Bold; + font-weight: Bold; border: 1px solid shade(#686868, 1.15); box-shadow: none; background-image: none; diff -uNr xfce4-notifyd-0.3.3/themes/gtk-3.20/Default/gtk.css xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/Default/gtk.css --- xfce4-notifyd-0.3.3/themes/gtk-3.20/Default/gtk.css 2016-09-11 06:46:53.000000000 -0400 +++ xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/Default/gtk.css 2016-10-20 13:39:27.662117921 -0400 @@ -7,5 +7,5 @@ } #XfceNotifyWindow label#summary { - font: Bold; + font-weight: Bold; } diff -uNr xfce4-notifyd-0.3.3/themes/gtk-3.20/Retro/gtk.css xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/Retro/gtk.css --- xfce4-notifyd-0.3.3/themes/gtk-3.20/Retro/gtk.css 2016-09-11 06:46:53.000000000 -0400 +++ xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/Retro/gtk.css 2016-10-20 13:39:03.579987712 -0400 @@ -16,7 +16,7 @@ } #XfceNotifyWindow label#summary { - font: Bold; + font-weight: Bold; } #XfceNotifyWindow button { diff -uNr xfce4-notifyd-0.3.3/themes/gtk-3.20/Smoke/gtk.css xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/Smoke/gtk.css --- xfce4-notifyd-0.3.3/themes/gtk-3.20/Smoke/gtk.css 2016-09-11 06:46:53.000000000 -0400 +++ xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/Smoke/gtk.css 2016-10-20 13:38:43.227032500 -0400 @@ -16,7 +16,7 @@ } #XfceNotifyWindow label#summary { - font: Bold; + font-weight: Bold; } #XfceNotifyWindow button { diff -uNr xfce4-notifyd-0.3.3/themes/gtk-3.20/ZOMG-PONIES!/gtk.css xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/ZOMG-PONIES!/gtk.css --- xfce4-notifyd-0.3.3/themes/gtk-3.20/ZOMG-PONIES!/gtk.css 2016-09-11 06:46:53.000000000 -0400 +++ xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/ZOMG-PONIES!/gtk.css 2016-10-20 13:37:51.417604777 -0400 @@ -6,12 +6,13 @@ #XfceNotifyWindow label, #XfceNotifyWindow image { - font : Comic Sans MS 22; + font-family: Comic Sans MS; + font-size: 22pt; color: #ffff00; } #XfceNotifyWindow label#summary { - font: Bold; + font-weight: Bold; } #XfceNotifyWindow button { diff -uNr xfce4-notifyd-0.3.3/themes/gtk-3.20/ZOMG-PONIES!/gtk.css~ xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/ZOMG-PONIES!/gtk.css~ --- xfce4-notifyd-0.3.3/themes/gtk-3.20/ZOMG-PONIES!/gtk.css~ 1969-12-31 19:00:00.000000000 -0500 +++ xfce4-notifyd-0.3.3-fixed/themes/gtk-3.20/ZOMG-PONIES!/gtk.css~ 2016-09-11 06:46:53.000000000 -0400 @@ -0,0 +1,45 @@ +#XfceNotifyWindow { + background-color: #ff69b4; + border-radius: 10px; + border: 6px solid #ffff00; +} + +#XfceNotifyWindow label, +#XfceNotifyWindow image { + font : Comic Sans MS 22; + color: #ffff00; +} + +#XfceNotifyWindow label#summary { + font: Bold; +} + +#XfceNotifyWindow button { + border-style: none; + background-image: none; + background-color : #9400d3; +} + +#XfceNotifyWindow button:hover { + border-style: none; + background-image: none; + background-color : #5e0086; +} + +#XfceNotifyWindow progressbar { + border-radius: 3px; +} + +#XfceNotifyWindow progressbar progress { + min-height: 16px; + background-image: none; + background-color: shade(#ffff00, 1.2); +} + +#XfceNotifyWindow progressbar trough { + min-height: 16px; + background-image: none; + background-color: #5e0086; + border: 1px solid shade(#5e0086, 0.6); + border-radius: 3px; +}