qml: introduce Theme singleton

Holds color definitions and updates based on if in dark mode.

Author: jarolrod

src/Makefile.qt.include

@@ -307,8 +307,10 @@ QML_RES_QML = \
   qml/controls/OptionButton.qml \
   qml/controls/OptionSwitch.qml \
   qml/controls/ProgressIndicator.qml \
+  qml/controls/qmldir \
   qml/controls/Setting.qml \
   qml/controls/TextButton.qml \
+  qml/controls/Theme.qml \
   qml/pages/initerrormessage.qml \
   qml/pages/stub.qml
 

src/qml/bitcoin_qml.qrc

@@ -10,8 +10,10 @@
         <file>controls/OptionButton.qml</file>
         <file>controls/OptionSwitch.qml</file>
         <file>controls/ProgressIndicator.qml</file>
+        <file>controls/qmldir</file>
         <file>controls/Setting.qml</file>
         <file>controls/TextButton.qml</file>
+        <file>controls/Theme.qml</file>
         <file>pages/initerrormessage.qml</file>
         <file>pages/stub.qml</file>
     </qresource>

src/qml/controls/Theme.qml

@@ -0,0 +1,28 @@
+pragma Singleton
+import QtQuick 2.15
+
+QtObject {
+    property bool dark: false
+    property QtObject color: QtObject {
+        property color white: "#FFFFFF"
+        property color background: dark ? "black" : "white"
+        property color orange: dark ? "#F89B2A" : "#F7931A"
+        property color red: dark ? "#EC6363" : "#EB5757"
+        property color green: dark ? "#36B46B" : "#27AE60"
+        property color blue: dark ? "#3CA3DE" : "#2D9CDB"
+        property color purple: dark ? "#C075DC" : "#BB6BD9"
+        property color neutral0: dark ? "#000000" : "#FFFFFF"
+        property color neutral1: dark ? "#1A1A1A" : "#F8F8F8"
+        property color neutral2: dark ? "#2D2D2D" : "#F4F4F4"
+        property color neutral3: dark ? "#444444" : "#EDEDED"
+        property color neutral4: dark ? "#5C5C5C" : "#DEDEDE"
+        property color neutral5: dark ? "#787878" : "#BBBBBB"
+        property color neutral6: dark ? "#949494" : "#999999"
+        property color neutral7: dark ? "#B0B0B0" : "#777777"
+        property color neutral8: dark ? "#CCCCCC" : "#404040"
+        property color neutral9: dark ? "#FFFFFF" : "#000000"
+    }
+    function toggleDark() {
+        dark = !dark
+    }
+}

src/qml/controls/qmldir

@@ -0,0 +1 @@
+singleton Theme 1.0 Theme.qml