apply stylesheet app wide, and add border to win10 menu

the night mode add-on may need updating with this change, but with
a global stylesheet it may be easier to style widgets in the future

menu bar issue:

https://anki.tenderapp.com/discussions/beta-testing/1313-anki-216-beta-1#comment_46664932

aqt/browser.py

@@ -18,7 +18,7 @@ from anki.utils import fmtTimeSpan, ids2str, stripHTMLMedia, htmlToTextLine, \
     isWin, intTime, \
     isMac, isLin, bodyClass
 from aqt.utils import saveGeom, restoreGeom, saveSplitter, restoreSplitter, \
-    saveHeader, restoreHeader, saveState, restoreState, applyStyles, getTag, \
+    saveHeader, restoreHeader, saveState, restoreState, getTag, \
     showInfo, askUser, tooltip, openHelp, showWarning, shortcut, mungeQA, \
     getOnlyText, MenuList, SubMenu
 from anki.hooks import runHook, addHook, remHook, runFilter
@@ -384,7 +384,6 @@ class Browser(QMainWindow):
 
     def __init__(self, mw):
         QMainWindow.__init__(self, None, Qt.Window)
-        applyStyles(self)
         self.mw = mw
         self.col = self.mw.col
         self.lastFilter = ""

aqt/main.py

@@ -8,6 +8,7 @@ import zipfile
 import gc
 import time
 import faulthandler
+import platform
 from threading import Thread
 
 from send2trash import send2trash
@@ -15,7 +16,7 @@ from aqt.qt import *
 from anki import Collection
 from anki.utils import  isWin, isMac, intTime, splitFields, ids2str, \
         devMode
-from anki.hooks import runHook, addHook
+from anki.hooks import runHook, addHook, runFilter
 import aqt
 import aqt.progress
 import aqt.webview
@@ -26,7 +27,7 @@ from aqt.utils import showWarning
 import anki.sound
 import anki.mpv
 from aqt.utils import saveGeom, restoreGeom, showInfo, showWarning, \
-    restoreState, getOnlyText, askUser, applyStyles, showText, tooltip, \
+    restoreState, getOnlyText, askUser, showText, tooltip, \
     openHelp, openLink, checkInvalidFilename, getFile
 import sip
 
@@ -696,7 +697,33 @@ title="%s" %s>%s</button>''' % (
         self.form.statusbar.showMessage(text, timeout)
 
     def setupStyle(self):
-        applyStyles(self)
+        buf = ""
+
+        if isWin and platform.release() == '10':
+            # add missing bottom border to menubar
+            buf += """
+QMenuBar {
+  border-bottom: 1px solid #aaa;
+  background: white;
+}        
+"""
+            # qt bug? setting the above changes the browser sidebar
+            # to white as well, so set it back
+            buf += """
+QTreeWidget {
+  background: #eee;
+}            
+            """
+
+        # allow addons to modify the styling
+        buf = runFilter("setupStyle", buf)
+
+        # allow users to extend styling
+        p = os.path.join(aqt.mw.pm.base, "style.css")
+        if os.path.exists(p):
+            buf += open(p).read()
+
+        self.app.setStyleSheet(buf)
 
     # Key handling
     ##########################################################################

aqt/utils.py

@@ -350,11 +350,6 @@ def mungeQA(col, txt):
     txt = stripSounds(txt)
     return txt
 
-def applyStyles(widget):
-    p = os.path.join(aqt.mw.pm.base, "style.css")
-    if os.path.exists(p):
-        widget.setStyleSheet(open(p).read())
-
 def openFolder(path):
     if isWin:
         subprocess.Popen(["explorer", "file://"+path])