diff --git a/SystemInformer/sysinfo.c b/SystemInformer/sysinfo.c
index 178604cf2804..a85584a0c911 100644
--- a/SystemInformer/sysinfo.c
+++ b/SystemInformer/sysinfo.c
@@ -1074,15 +1074,15 @@ VOID PhSiSetColorsGraphDrawInfo(
         DrawInfo->TextBoxColor = RGB(0xe7, 0xe7, 0xe7);
         break;
     case 1: // Old colors
-        DrawInfo->BackColor = RGB(0x00, 0x00, 0x00);
+        DrawInfo->BackColor = PhThemeWindowForegroundColor;
         DrawInfo->LineColor1 = Color1;
         DrawInfo->LineBackColor1 = PhHalveColorBrightness(Color1);
         DrawInfo->LineColor2 = Color2;
         DrawInfo->LineBackColor2 = PhHalveColorBrightness(Color2);
-        DrawInfo->GridColor = RGB(0x00, 0x57, 0x00);
+        DrawInfo->GridColor = PhThemeWindowBackground2Color;
         DrawInfo->LabelYColor = RGB(0xd0, 0xa0, 0x70);
-        DrawInfo->TextColor = RGB(0x00, 0xff, 0x00);
-        DrawInfo->TextBoxColor = RGB(0x00, 0x22, 0x00);
+        DrawInfo->TextColor = PhMakeColorDarker(PhThemeWindowTextColor, 7);
+        DrawInfo->TextBoxColor = PhThemeWindowBackgroundColor;
         break;
     }
 }
diff --git a/phlib/include/guisup.h b/phlib/include/guisup.h
index 8e09142e06d7..2dfc64138682 100644
--- a/phlib/include/guisup.h
+++ b/phlib/include/guisup.h
@@ -1722,6 +1722,39 @@ PhMakeColorBrighter(
     return RGB(r, g, b);
 }
 
+FORCEINLINE
+COLORREF
+PhMakeColorDarker(
+    _In_ COLORREF Color,
+    _In_ UCHAR Increment
+    )
+{
+    UCHAR r;
+    UCHAR g;
+    UCHAR b;
+
+    r = (UCHAR)Color;
+    g = (UCHAR)(Color >> 8);
+    b = (UCHAR)(Color >> 16);
+
+    if (r - Increment > 0)
+        r -= Increment;
+    else
+        r = 0;
+
+    if (g - Increment > 0)
+        g -= Increment;
+    else
+        g = 0;
+
+    if (b - Increment > 0)
+        b -= Increment;
+    else
+        b = 0;
+
+    return RGB(r, g, b);
+}
+
 // Window support
 
 typedef enum _PH_PLUGIN_WINDOW_EVENT_TYPE
diff --git a/plugins/ExtendedTools/objmgr.c b/plugins/ExtendedTools/objmgr.c
index 850c455948e5..ea8192b0e98f 100644
--- a/plugins/ExtendedTools/objmgr.c
+++ b/plugins/ExtendedTools/objmgr.c
@@ -1454,10 +1454,7 @@ VOID EtObjectManagerFreeListViewItems(
 
     PhClearReference(&Context->CurrentPath);
 
-    for (ULONG i = 0; i < Context->CurrentDirectoryList->Count; i++)
-    {
-        PhDereferenceObject(Context->CurrentDirectoryList->Items[i]);
-    }
+    PhDereferenceObjects(Context->CurrentDirectoryList->Items, Context->CurrentDirectoryList->Count);
 
     //INT index = INT_ERROR;
     //while ((index = PhFindListViewItemByFlags(
diff --git a/plugins/HardwareDevices/gpuoptions.c b/plugins/HardwareDevices/gpuoptions.c
index f3e3d7dedf05..f473b132efd7 100644
--- a/plugins/HardwareDevices/gpuoptions.c
+++ b/plugins/HardwareDevices/gpuoptions.c
@@ -499,6 +499,7 @@ VOID FindGraphicsDevices(
         PhFree(entry);
     }
     PhReleaseQueuedLockShared(&GraphicsDevicesListLock);
+    PhDereferenceObject(deviceList);
 
     // HACK: Show all unknown devices.
     PhAcquireQueuedLockShared(&GraphicsDevicesListLock);