Implement system theme (dark mode) and fix background image on windows.

.gitignore

@@ -12,3 +12,4 @@ KindleComicConverter*.egg-info/
 /kindlegen*
 /kcc.bat
 .DS_Store
+KCC_7.0.0.spec

gui/KCC.ui

@@ -480,7 +480,7 @@
     <item row="2" column="0" colspan="2">
      <widget class="QListWidget" name="jobList">
       <property name="styleSheet">
-       <string notr="true">QListWidget#jobList {background:#ffffff;background-image:url(:/Other/icons/list_background.png);background-position:center center;background-repeat:no-repeat;color:rgb(0,0,0);}</string>
+       <string notr="true">QListWidget#jobList {background-image:url(:/Other/icons/list_background.png);background-position:center center;background-repeat:no-repeat;color:rgb(0,0,0);}</string>
       </property>
       <property name="selectionMode">
        <enum>QAbstractItemView::NoSelection</enum>

kindlecomicconverter/KCC_gui.py

@@ -459,7 +459,17 @@ def selectDir(self):
             if sys.platform.startswith('win'):
                 dname = dname.replace('/', '\\')
             self.lastPath = os.path.abspath(os.path.join(dname, os.pardir))
-            GUI.jobList.addItem(dname)
+            #formatting like addMessage to ensure theme compatibility
+            item = QtWidgets.QListWidgetItem(dname)
+            item.setForeground(QtGui.QColor('transparent'))
+            label = QtWidgets.QLabel(dname)
+            color_scheme = QtWidgets.QApplication.styleHints().colorScheme()
+            if color_scheme == QtWidgets.QApplication.styleHints().colorScheme().Dark:
+                label.setStyleSheet('background-image:url('');background-color:rgba(0,0,0,0);color:rgb(255,255,255);')
+            else:
+                label.setStyleSheet('background-image:url('');background-color:rgba(0,0,0,0);color:rgb(0,0,0);')
+            GUI.jobList.addItem(item)
+            GUI.jobList.setItemWidget(item, label)
             GUI.jobList.scrollToBottom()
 
     def selectFile(self):
@@ -477,7 +487,17 @@ def selectFile(self):
                 if sys.platform.startswith('win'):
                     fname = fname.replace('/', '\\')
                 self.lastPath = os.path.abspath(os.path.join(fname, os.pardir))
-                GUI.jobList.addItem(fname)
+                #formatting like addMessage to ensure theme compatibility
+                item = QtWidgets.QListWidgetItem(fname)
+                item.setForeground(QtGui.QColor('transparent'))
+                label = QtWidgets.QLabel(fname)
+                color_scheme = QtWidgets.QApplication.styleHints().colorScheme()
+                if color_scheme == QtWidgets.QApplication.styleHints().colorScheme().Dark:
+                    label.setStyleSheet('background-image:url('');background-color:rgba(0,0,0,0);color:rgb(255,255,255);')
+                else:
+                    label.setStyleSheet('background-image:url('');background-color:rgba(0,0,0,0);color:rgb(0,0,0);')
+                GUI.jobList.addItem(item)
+                GUI.jobList.setItemWidget(item, label)
                 GUI.jobList.scrollToBottom()
 
     def selectFileMetaEditor(self):
@@ -689,7 +709,11 @@ def addMessage(self, message, icon, replace=False):
         # We still fill original text field with transparent content to trigger creation of horizontal scrollbar
         item.setForeground(QtGui.QColor('transparent'))
         label = QtWidgets.QLabel(message)
-        label.setStyleSheet('background-image:url('');background-color:rgba(0,0,0,0);color:rgb(0,0,0);')
+        color_scheme = QtWidgets.QApplication.styleHints().colorScheme()
+        if color_scheme == QtWidgets.QApplication.styleHints().colorScheme().Dark:
+            label.setStyleSheet('background-image:url('');background-color:rgba(0,0,0,0);color:rgb(255,255,255);')
+        else:
+            label.setStyleSheet('background-image:url('');background-color:rgba(0,0,0,0);color:rgb(0,0,0);')
         label.setOpenExternalLinks(True)
         GUI.jobList.addItem(item)
         GUI.jobList.setItemWidget(item, label)