Flexible citation raises or lowers with the height of the caption.

renderer/text-wrapper.js

 
       var totalHeight = lines.length * theme[type + 'LineHeight'] + (lines.length - 1) * theme[type + 'LineSpacing'];
 
+      // save caption height for measuring citation top
+      if (type === 'caption') {
+        theme.captionTotalHeight = totalHeight;
+      }
+
       // horizontal alignment
       var x = theme[type + 'Align'] === "left" ? left : theme[type + 'Align'] === "right" ? right : (left + right) / 2;
 
         y = bottom - totalHeight;
       } else {
         // Vertical align top
-        y = top;
+        if (type === 'citation' && theme.captionTotalHeight) {
+          y = theme.captionTop + theme.captionTotalHeight + theme[type + 'TopMargin'];
+        }
+        else {
+          y = top
+        }
       }
 
       // draw text

settings/themes.json

     "captionLineSpacing": 7,
     "citationAlign": "left",
     "citationFont": "300 38px 'NYT Franklin Light'",
-    "citationTopMargin": 40,
+    "citationTopMargin": 32,
     "citationTop": 342,
     "citationLeft": 50,
     "citationRight": 890,