I went to report the output when I selected the video player for my app, this is what it out put.
"$ ubuntu-bug -w (apport-gtk:22406): Gtk-WARNING **: Theme parsing error: gtk-widgets- borders.css:276:34: Expected a valid selector (apport-gtk:22406): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:6:19: Theming engine 'adwaita' not found Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged. (process:23541): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed director@STUDIO1:~$ ubuntu-bug -w (apport-gtk:23561): Gtk-WARNING **: Theme parsing error: gtk-widgets- borders.css:276:34: Expected a valid selector (apport-gtk:23561): Gtk-WARNING **: Theme parsing error: gtk-widgets.css:6:19: Theming engine 'adwaita' not found Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged. Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged." I thought the culprit might be the "adwaita" theme full set inclusion into the library. I will report back if anything changes. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-calculator in Ubuntu. https://bugs.launchpad.net/bugs/1456331 Title: The buttons in my Ubuntu apps are too big. Status in gnome-calculator package in Ubuntu: New Bug description: The size is fixed, and I can not reduce the size of the calculator. it takes up the entire screen. The buttons are nearly 2 square inches on my 23" monitor. I think it is a theme issue, because it appears in the video player, and in the nautilus backwards, and forwards buttons, but does not occur in Nemo. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: gnome-calculator 1:3.14.1-0ubuntu3 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Mon May 18 16:34:06 2015 ExecutablePath: /usr/bin/gnome-calculator InstallationDate: Installed on 2014-10-25 (204 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-calculator UpgradeStatus: Upgraded to vivid on 2015-04-25 (23 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-calculator/+bug/1456331/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp