diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
index 440efe5..bcb6e17 100644
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -20,6 +20,8 @@
   - Rename `ImGuiStyleVar::ChildWindowRounding` to `ImGuiStyleVar::ChildRounding`.
   - Rename `StyleVar::ChildWindowRounding` to `StyleVar::ChildRounding`.
 
+  - Style: Add `PopupRounding`, `FrameBorderSize`, `WindowBorderSize`, `PopupBorderSize`.
+
 
 ## [0.0.18] - 2017-12-23
 
diff --git a/imgui-sys/src/lib.rs b/imgui-sys/src/lib.rs
index c8d8539..e646772 100644
--- a/imgui-sys/src/lib.rs
+++ b/imgui-sys/src/lib.rs
@@ -147,15 +147,19 @@ pub enum ImGuiStyleVar {
     WindowRounding,
     WindowMinSize,
     ChildRounding,
+    ChildBorderSize,
+    PopupRounding,
+    PopupBorderSize,
     FramePadding,
     FrameRounding,
+    FrameBorderSize,
     ItemSpacing,
     ItemInnerSpacing,
     IndentSpacing,
     GrabMinSize,
     ButtonTextAlign,
 }
-pub const ImGuiStyleVar_COUNT: usize = 12;
+pub const ImGuiStyleVar_COUNT: usize = 16;
 
 impl ImGuiStyleVar {
     #[deprecated(since = "0.0.19", note = "please use ChildRounding instead")]
diff --git a/src/lib.rs b/src/lib.rs
index 1785b3f..2c310c7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1206,8 +1206,20 @@ impl<'ui> Ui<'ui> {
             ChildRounding(v) => unsafe {
                 igPushStyleVar(ImGuiStyleVar::ChildRounding, v)
             },
+            ChildBorderSize(v) => unsafe {
+                igPushStyleVar(ImGuiStyleVar::ChildBorderSize, v)
+            },
+            PopupRounding(v) => unsafe {
+                igPushStyleVar(ImGuiStyleVar::PopupRounding, v)
+            },
+            PopupBorderSize(v) => unsafe {
+                igPushStyleVar(ImGuiStyleVar::PopupBorderSize, v)
+            },
             FramePadding(v) => unsafe { igPushStyleVarVec(ImGuiStyleVar::FramePadding, v) },
             FrameRounding(v) => unsafe { igPushStyleVar(ImGuiStyleVar::FrameRounding, v) },
+            FrameBorderSize(v) => unsafe {
+                igPushStyleVar(ImGuiStyleVar::FrameBorderSize, v)
+            },
             ItemSpacing(v) => unsafe { igPushStyleVarVec(ImGuiStyleVar::ItemSpacing, v) },
             ItemInnerSpacing(v) => unsafe { igPushStyleVarVec(ImGuiStyleVar::ItemInnerSpacing, v) },
             IndentSpacing(v) => unsafe { igPushStyleVar(ImGuiStyleVar::IndentSpacing, v) },
diff --git a/src/style.rs b/src/style.rs
index 2b3dbb2..5859be8 100644
--- a/src/style.rs
+++ b/src/style.rs
@@ -7,8 +7,12 @@ pub enum StyleVar {
     WindowRounding(f32),
     WindowMinSize(ImVec2),
     ChildRounding(f32),
+    ChildBorderSize(f32),
+    PopupRounding(f32),
+    PopupBorderSize(f32),
     FramePadding(ImVec2),
     FrameRounding(f32),
+    FrameBorderSize(f32),
     ItemSpacing(ImVec2),
     ItemInnerSpacing(ImVec2),
     IndentSpacing(f32),