Rework themes to easily use light/dark palette, using only different icons

- Renamed themes:
  - "colorful" to "default" and "colorful_dark" to "default_dark"
  - "default" to "monochrome" and "default_dark" to "monochrome_dark"
  - "colorful_midnight_blue" to "qdarkstyle_midnight_blue"
  - "qdarkstyle_midnight_blue" to "qdarkstyle_midnight_blue_monochrome"
  - qdarkstyle is renamed from "Dark" to "Mine Shaft" in the UI
- default and monochrome themes all use the same qss stylesheet
- Remove the ability to select "default_dark" directly
    - Default has better support for light and dark
    - Controller and Keyboard applets icons and style adapt to dark mode
- Add "qdarkstyle_monochrome" theme
- Remove duplicated icon files

dist/qt_themes/default/default.qrc

@@ -4,23 +4,37 @@ SPDX-License-Identifier: GPL-2.0-or-later
 -->
 
 <RCC>
+    <!-- Default style -->
+    <qresource prefix="default">
+        <file>style.qss</file>
+    </qresource>
+
+    <!-- Default icons -->
     <qresource prefix="icons/default">
-        <!-- "colorful" is now the default theme, add new icons there -->
         <file alias="index.theme">icons/index.theme</file>
         <file alias="16x16/connected.png">icons/16x16/connected.png</file>
         <file alias="16x16/connected_notification.png">icons/16x16/connected_notification.png</file>
         <file alias="16x16/disconnected.png">icons/16x16/disconnected.png</file>
+        <file alias="16x16/failed.png">icons/16x16/failed.png</file>
+        <file alias="16x16/info.png">icons/16x16/info.png</file>
         <file alias="16x16/lock.png">icons/16x16/lock.png</file>
+        <file alias="16x16/sync.png">icons/16x16/sync.png</file>
+        <file alias="16x16/view-refresh.png">icons/16x16/view-refresh.png</file>
         <file alias="48x48/bad_folder.png">icons/48x48/bad_folder.png</file>
         <file alias="48x48/chip.png">icons/48x48/chip.png</file>
         <file alias="48x48/folder.png">icons/48x48/folder.png</file>
         <file alias="48x48/list-add.png">icons/48x48/list-add.png</file>
+        <file alias="48x48/no_avatar.png">icons/48x48/no_avatar.png</file>
         <file alias="48x48/sd_card.png">icons/48x48/sd_card.png</file>
         <file alias="48x48/star.png">icons/48x48/star.png</file>
         <file alias="256x256/plus_folder.png">icons/256x256/plus_folder.png</file>
         <file alias="256x256/suyu.png">icons/256x256/suyu.png</file>
     </qresource>
-    <qresource prefix="default">
-        <file>style.qss</file>
+
+    <!-- Dark variant icons -->
+    <qresource prefix="icons/default_dark">
+        <file alias="index.theme">../default_dark/icons/index.theme</file>
+        <file alias="16x16/lock.png">../default_dark/icons/16x16/lock.png</file>
+        <file alias="16x16/view-refresh.png">../default_dark/icons/16x16/view-refresh.png</file>
     </qresource>
 </RCC>

dist/qt_themes/default/icons/index.theme

@@ -1,7 +1,6 @@
 [Icon Theme]
 Name=default
-Comment=default theme
-Inherits=colorful
+Comment=Colorful theme
 Directories=16x16,48x48,256x256
  
 [16x16]
@@ -9,6 +8,6 @@ Size=16
 
 [48x48]
 Size=48
- 
+
 [256x256]
 Size=256

dist/qt_themes/default/style.qss

@@ -22,7 +22,7 @@ QPushButton#TogglableStatusBarButton {
 }
 
 QPushButton#TogglableStatusBarButton:checked {
-    color: #000000;
+    color: palette(text);
 }
 
 QPushButton#TogglableStatusBarButton:hover {
@@ -49,6 +49,10 @@ QPushButton#RendererStatusBarButton:!checked {
     color: #0066ff;
 }
 
+QPushButton#RendererStatusBarButton:!checked[dark=true] {
+    color: #00ccdd;
+}
+
 QPushButton#GPUStatusBarButton {
     color: #656565;
     border: 1px solid transparent;
@@ -65,13 +69,21 @@ QPushButton#GPUStatusBarButton:checked {
     color: #b06020;
 }
 
+QPushButton#GPUStatusBarButton:checked[dark=true] {
+    color: #ff8040;
+}
+
 QPushButton#GPUStatusBarButton:!checked {
     color: #109010;
 }
 
+QPushButton#GPUStatusBarButton:!checked[dark=true] {
+    color: #40dd40;
+}
+
 QPushButton#DockingStatusBarButton {
     min-width: 0px;
-    color: #000000;
+    color: palette(text);
     border: 1px solid transparent;
     background-color: transparent;
     padding: 0px 3px 0px 3px;
@@ -131,10 +143,6 @@ QWidget#connectedControllers {
     background: transparent;
 }
 
-QWidget#closeButtons {
-    background: transparent;
-}
-
 QWidget#playersSupported,
 QWidget#controllersSupported,
 QWidget#controllerSupported1,
@@ -383,7 +391,7 @@ QStackedWidget#stackedDialog QTextBrowser QScrollBar::vertical {
     border-radius: 4px;
 }
 
-QStackedWidget#stackedDialog QTextBrowser QScrollBar::horizoncal {
+QStackedWidget#stackedDialog QTextBrowser QScrollBar::horizontal {
     background: #cdcdcd;
     height: 15px;
     margin: 3px 15px 3px 15px;
@@ -592,42 +600,6 @@ QDialog#QtSoftwareKeyboardDialog QPushButton#button_backspace_num:pressed {
     border-radius: 6px;
 }
 
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_backspace,
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_backspace_shift,
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_backspace_num {
-    image: url(:/overlay/osk_button_B.png);
-    image-position: right;
-    qproperty-icon: url(:/overlay/osk_button_backspace.png);
-    qproperty-iconSize: 36px;
-}
-
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_space,
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_space_shift {
-    image: url(:/overlay/osk_button_Y.png);
-    image-position: right;
-}
-
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_ok,
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_ok_shift,
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_ok_num {
-    image: url(:/overlay/osk_button_plus.png);
-    image-position: right;
-}
-
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_shift {
-    image: url(:/overlay/osk_button_shift_lock_off.png);
-    image-position: left;
-    qproperty-icon: url(:/overlay/osk_button_shift.png);
-    qproperty-iconSize: 36px;
-}
-
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_shift_shift {
-    image: url(:/overlay/osk_button_shift_lock_off.png);
-    image-position: left;
-    qproperty-icon: url(:/overlay/osk_button_shift_on.png);
-    qproperty-iconSize: 36px;
-}
-
 QDialog#QtSoftwareKeyboardDialog QPushButton#button_left_bracket,
 QDialog#QtSoftwareKeyboardDialog QPushButton#button_right_bracket,
 QDialog#QtSoftwareKeyboardDialog QPushButton#button_left_parenthesis,
@@ -640,47 +612,6 @@ QDialog#QtSoftwareKeyboardDialog QWidget#titleOSK QLabel {
     color: #ccc;
 }
 
-QDialog#QtSoftwareKeyboardDialog QWidget#button_L,
-QDialog#QtSoftwareKeyboardDialog QWidget#button_L_shift,
-QDialog#QtSoftwareKeyboardDialog QWidget#button_L_num {
-    image: url(:/overlay/button_L.png);
-}
-
-QDialog#QtSoftwareKeyboardDialog QWidget#arrow_left,
-QDialog#QtSoftwareKeyboardDialog QWidget#arrow_left_shift,
-QDialog#QtSoftwareKeyboardDialog QWidget#arrow_left_num {
-    image: url(:/overlay/arrow_left.png);
-}
-
-QDialog#QtSoftwareKeyboardDialog QWidget#button_R,
-QDialog#QtSoftwareKeyboardDialog QWidget#button_R_shift,
-QDialog#QtSoftwareKeyboardDialog QWidget#button_R_num {
-    image: url(:/overlay/button_R.png);
-}
-
-QDialog#QtSoftwareKeyboardDialog QWidget#arrow_right,
-QDialog#QtSoftwareKeyboardDialog QWidget#arrow_right_shift,
-QDialog#QtSoftwareKeyboardDialog QWidget#arrow_right_num {
-    image: url(:/overlay/arrow_right.png);
-}
-
-QDialog#QtSoftwareKeyboardDialog QWidget#button_press_stick,
-QDialog#QtSoftwareKeyboardDialog QWidget#button_press_stick_shift {
-    image: url(:/overlay/button_press_stick.png);
-}
-
-QDialog#QtSoftwareKeyboardDialog QWidget#button_X,
-QDialog#QtSoftwareKeyboardDialog QWidget#button_X_shift,
-QDialog#QtSoftwareKeyboardDialog QWidget#button_X_num {
-    image: url(:/overlay/button_X.png);
-}
-
-QDialog#QtSoftwareKeyboardDialog QWidget#button_A,
-QDialog#QtSoftwareKeyboardDialog QWidget#button_A_shift,
-QDialog#QtSoftwareKeyboardDialog QWidget#button_A_num {
-    image: url(:/overlay/button_A.png);
-}
-
 QDialog#QtSoftwareKeyboardDialog QPushButton#button_ok:disabled,
 QDialog#QtSoftwareKeyboardDialog QPushButton#button_space:disabled,
 QDialog#QtSoftwareKeyboardDialog QPushButton#button_return:disabled,
@@ -711,20 +642,3 @@ QDialog#QtSoftwareKeyboardDialog QPushButton#button_0:disabled,
 QDialog#QtSoftwareKeyboardDialog QPushButton#button_return:disabled {
     color: palette(midlight);
 }
-
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_ok:disabled,
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_ok_shift:disabled,
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_ok_num:disabled {
-    image: url(:/overlay/osk_button_plus_disabled.png);
-}
-
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_backspace:disabled,
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_backspace_shift:disabled,
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_backspace_num:disabled {
-    image: url(:/overlay/osk_button_B_disabled.png);
-}
-
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_space:disabled,
-QDialog#QtSoftwareKeyboardDialog QPushButton#button_space_shift:disabled {
-    image: url(:/overlay/osk_button_Y_disabled.png);
-}