diff --git a/picard/coverart/providers/caa.py b/picard/coverart/providers/caa.py
index 929491f2f..c31d6fdaa 100644
--- a/picard/coverart/providers/caa.py
+++ b/picard/coverart/providers/caa.py
@@ -104,9 +104,6 @@ class CAATypesSelectorDialog(QtWidgets.QDialog):
                                  QtWidgets.QDialogButtonBox.RejectRole)
         self.buttonbox.addButton(
             StandardButton(StandardButton.HELP), QtWidgets.QDialogButtonBox.HelpRole)
-        self.buttonbox.accepted.connect(self.accept)
-        self.buttonbox.rejected.connect(self.reject)
-        self.buttonbox.helpRequested.connect(self.help)
 
         extrabuttons = [
             (N_("Chec&k all"), self.checkall),
@@ -123,6 +120,7 @@ class CAATypesSelectorDialog(QtWidgets.QDialog):
 
         self.buttonbox.accepted.connect(self.accept)
         self.buttonbox.rejected.connect(self.reject)
+        self.buttonbox.helpRequested.connect(self.help)
 
     def help(self):
         webbrowser2.goto('doc_cover_art_types')
@@ -138,13 +136,8 @@ class CAATypesSelectorDialog(QtWidgets.QDialog):
             item.setChecked(value)
 
     def get_selected_types(self):
-        types = []
-        for item, typ in self._items.items():
-            if item.isChecked():
-                types.append(typ['name'])
-        if not types:
-            return ['front']
-        return types
+        return [typ['name'] for item, typ in self._items.items() if
+                item.isChecked()] or ['front']
 
     @staticmethod
     def run(parent=None, types=None):
diff --git a/picard/ui/infodialog.py b/picard/ui/infodialog.py
index 439a78379..4c13e4ac5 100644
--- a/picard/ui/infodialog.py
+++ b/picard/ui/infodialog.py
@@ -30,6 +30,7 @@ from picard.util import (format_time, encode_filename,
                          union_sorted_lists, htmlescape)
 from picard.ui import PicardDialog
 from picard.ui.ui_infodialog import Ui_InfoDialog
+from picard.ui.util import StandardButton
 
 
 class ArtworkCoverWidget(QtWidgets.QWidget):
@@ -113,8 +114,9 @@ class InfoDialog(PicardDialog):
             self.existing_images = []
             self.display_existing_artwork = False
         self.ui.setupUi(self)
+        self.ui.buttonBox.addButton(
+            StandardButton(StandardButton.CLOSE), QtWidgets.QDialogButtonBox.AcceptRole)
         self.ui.buttonBox.accepted.connect(self.accept)
-        self.ui.buttonBox.rejected.connect(self.reject)
 
         # Add the ArtworkTable to the ui
         self.ui.artwork_table = ArtworkTable(self.display_existing_artwork)
@@ -258,7 +260,7 @@ def format_file_info(file_):
         else:
             ch = string_(ch)
         info.append((_('Channels:'), ch))
-    return '<br/>'.join(map(lambda i: '<b>%s</b><br/>%s' %
+    return '<br/>'.join(map(lambda i: '<b>%s</b> %s' %
                             (htmlescape(i[0]),
                              htmlescape(i[1])), info))
 
diff --git a/picard/ui/ui_infodialog.py b/picard/ui/ui_infodialog.py
index 5740794ff..1ed1edf0a 100644
--- a/picard/ui/ui_infodialog.py
+++ b/picard/ui/ui_infodialog.py
@@ -22,7 +22,7 @@ class Ui_InfoDialog(object):
         self.info_scroll.setObjectName("info_scroll")
         self.scrollAreaWidgetContents = QtWidgets.QWidget()
         self.scrollAreaWidgetContents.setEnabled(True)
-        self.scrollAreaWidgetContents.setGeometry(QtCore.QRect(0, 0, 493, 334))
+        self.scrollAreaWidgetContents.setGeometry(QtCore.QRect(0, 0, 493, 358))
         self.scrollAreaWidgetContents.setObjectName("scrollAreaWidgetContents")
         self.verticalLayoutLabel = QtWidgets.QVBoxLayout(self.scrollAreaWidgetContents)
         self.verticalLayoutLabel.setContentsMargins(0, 0, 0, 0)
@@ -44,7 +44,7 @@ class Ui_InfoDialog(object):
         self.tabWidget.addTab(self.artwork_tab, "")
         self.verticalLayout.addWidget(self.tabWidget)
         self.buttonBox = QtWidgets.QDialogButtonBox(InfoDialog)
-        self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.Cancel|QtWidgets.QDialogButtonBox.Ok)
+        self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.NoButton)
         self.buttonBox.setObjectName("buttonBox")
         self.verticalLayout.addWidget(self.buttonBox)
 
diff --git a/picard/ui/util.py b/picard/ui/util.py
index cc2db640a..201bcbf2c 100644
--- a/picard/ui/util.py
+++ b/picard/ui/util.py
@@ -28,11 +28,13 @@ class StandardButton(QtWidgets.QPushButton):
     OK = 0
     CANCEL = 1
     HELP = 2
+    CLOSE = 4
 
     __types = {
         OK: (N_('&Ok'), 'SP_DialogOkButton'),
         CANCEL: (N_('&Cancel'), 'SP_DialogCancelButton'),
         HELP: (N_('&Help'), 'SP_DialogHelpButton'),
+        CLOSE: (N_('Clos&e'), 'SP_DialogCloseButton'),
     }
 
     def __init__(self, btntype):
diff --git a/ui/infodialog.ui b/ui/infodialog.ui
index f02c47d42..792bf615e 100644
--- a/ui/infodialog.ui
+++ b/ui/infodialog.ui
@@ -35,7 +35,7 @@
             <x>0</x>
             <y>0</y>
             <width>493</width>
-            <height>334</height>
+            <height>358</height>
            </rect>
           </property>
           <layout class="QVBoxLayout" name="verticalLayoutLabel">
@@ -65,15 +65,14 @@
       <attribute name="title">
        <string>A&amp;rtwork</string>
       </attribute>
-      <layout class="QVBoxLayout">
-      </layout>
+      <layout class="QVBoxLayout"/>
      </widget>
     </widget>
    </item>
    <item>
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+      <set>QDialogButtonBox::NoButton</set>
      </property>
     </widget>
    </item>