处理实心长方形（有constant_width的线）

src/qelmt/line.rs

@@ -102,6 +102,8 @@ impl TryFrom<&LwPolyline> for Line {
             antialias: false,
             style: if poly.thickness > 0.1 {
                 "line-style:normal;line-weight:normal;filling:none;color:black"
+            } else if poly.constant_width > 1.0{
+                "line-style:normal;line-weight:hight;filling:none;color:black"
             } else {
                 "line-style:normal;line-weight:thin;filling:none;color:black"
             }

src/qelmt/polygon.rs

@@ -185,9 +185,9 @@ impl From<&Solid> for Polygon {
             //reasons...I'm trying to think if there is a time we might want to turn it on?
             antialias: false,
             style: if solid.thickness > 0.5 {
-                "line-style:normal;line-weight:normal;filling:none;color:black"
+                "line-style:normal;line-weight:normal;filling:black;color:black"
             } else {
-                "line-style:normal;line-weight:thin;filling:none;color:black"
+                "line-style:normal;line-weight:thin;filling:black;color:black"
             }
             .into(),
         }