加入ColorSet的enum方便获取，SpkLoading使用主题色

gui/spkloading.cpp

@@ -2,6 +2,7 @@
 #include <QPaintEvent>
 #include <QPainter>
 #include "spkloading.h"
+#include "spkui_general.h"
 
 SpkLoading::SpkLoading(QWidget *parent) : QWidget(parent)
 {
@@ -19,7 +20,7 @@ void SpkLoading::paintEvent(QPaintEvent *e)
 {
   QPainter p(this);
   QPen pen(Qt::NoPen);
-  QBrush b({ 0, 0x7b, 0xff }, Qt::SolidPattern); // TODO: Customizable accent color
+  QBrush b(SpkUi::CurrentColorSet[SpkUi::AccentColor], Qt::SolidPattern);
   p.setBrush(b);
   p.setPen(pen);
   p.setRenderHint(QPainter::Antialiasing);

gui/spkui_general.cpp

@@ -268,9 +268,9 @@ namespace SpkUi
 
   void UiMetaObject::SetAccentColor(QColor aColor)
   {
-    CurrentColorSet[3] = aColor.lighter(80);
+    CurrentColorSet[AccentColor] = aColor.lighter(80);
-    CurrentColorSet[4] = aColor;
+    CurrentColorSet[AccentColorHighlighted] = aColor;
-    CurrentColorSet[10] = ColorTextOnBackground(aColor);
+    CurrentColorSet[TextOnAccentColor] = ColorTextOnBackground(aColor);
     qApp->setStyleSheet(StylesheetFromColors(CurrentColorSet));
   }
 

inc/spkui_general.h

@@ -15,6 +15,23 @@ namespace SpkUi
 {
   enum SpkUiStyle { Light, Dark };
   enum SpkButtonStyle { Normal = 0, Recommend, Warn };
+  enum ColorSetIndex
+  {
+    GlobalBgnd = 0,
+    ControlsBgnd,
+    ControlsBgndHighlighted,
+    SelectionBgnd, AccentColor = SelectionBgnd,
+    SelectionBgndHighlighted, AccentColorHighlighted = SelectionBgndHighlighted,
+    LightCtrlsGradLight,
+    LightCtrlsGradDark,
+    LightCtrlsGradDarker,
+    DarkCtrlsGradLight,
+    DarkCtrlsGradDark,
+    TextOnSelection, TextOnAccentColor = TextOnSelection,
+    TextOnGlobalBgnd,
+    TextOnControlsBgnd,
+    TextLighter
+  };
 
   class SpkPopup;