Minor improvements

emigui/src/math.rs

@@ -134,6 +134,7 @@ impl Rect {
     pub fn min(&self) -> Vec2 {
         self.pos
     }
+
     pub fn max(&self) -> Vec2 {
         self.pos + self.size
     }
@@ -141,6 +142,12 @@ impl Rect {
     pub fn size(&self) -> Vec2 {
         self.size
     }
+    pub fn width(&self) -> f32 {
+        self.size.x
+    }
+    pub fn height(&self) -> f32 {
+        self.size.y
+    }
 
     // Convenience functions:
     pub fn left_top(&self) -> Vec2 {