FIxed mica window control buttons

src/browser/base/content/zen-styles/zen-browser-ui.css

@@ -110,10 +110,3 @@
     margin-inline-end: 8px;
   }
 }
-
-@media (-moz-windows-mica) {
-  :root[should-hide='true'] .titlebar-buttonbox {
-    /* We need to add a background so windows doesnt generate a default one */
-    background: var(--zen-branding-bg);
-  }
-}

src/widget/windows/nsWindow-cpp.patch

@@ -0,0 +1,19 @@
+diff --git a/widget/windows/nsWindow.cpp b/widget/windows/nsWindow.cpp
+index 00681c216c838efedbbcded9d6b843dbd8b5b0b6..e40203bc4557acbf014e7a5d16ca35fad7b57ca0 100644
+--- a/widget/windows/nsWindow.cpp
++++ b/widget/windows/nsWindow.cpp
+@@ -1078,6 +1078,14 @@ nsresult nsWindow::Create(nsIWidget* aParent, const LayoutDeviceIntRect& aRect,
+     const DWM_SYSTEMBACKDROP_TYPE tabbedWindow = DWMSBT_TABBEDWINDOW;
+     DwmSetWindowAttribute(mWnd, DWMWA_SYSTEMBACKDROP_TYPE, &tabbedWindow,
+                           sizeof tabbedWindow);
++
++    // If someone wants to make a patch to firefox, im fine with it. Im tired, boss.
++    // Windows creates some sort of control buttons under the titlebar, which is
++    // annoying for us because it wont allow us to have those hiding animations.
++    // Let's just... remove them... and hope for the best.
++    LONG_PTR style = ::GetWindowLongPtr(hwnd, GWL_STYLE);
++    style &= ~(kTitlebarItemsWindowStyles);
++    ::SetWindowLongPtr(hwnd, GWL_STYLE, style);
+   }
+ 
+   if (mOpeningAnimationSuppressed) {