Resolve a FIXME

piechart/src/main/kotlin/ir/mahozad/android/LegendBuilder.kt

@@ -67,16 +67,14 @@ internal class LegendBuilder {
             background = Background(legendBoxBackgroundColor),
             margins = legendBoxMargins,
             paddings = Paddings(legendBoxPadding),
-            // FIXME: If border is not enabled pass null instead of making its thickness 0.001f;
-            //  passing null caused the whole horizontal bottom legend box to disappear.
-            border = Border(
-                if (isLegendBoxBorderEnabled) legendBoxBorder else 0.001f,
+            border = if (isLegendBoxBorderEnabled) Border(
+                thickness = legendBoxBorder,
                 color = legendBoxBorderColor,
                 alpha = legendBoxBorderAlpha,
                 cornerRadius = legendBoxBorderCornerRadius,
                 type = legendBoxBorderType,
                 dashArray = legendBoxBorderDashArray
-            )
+            ) else null
         )
         return legendBox
     }