[From string (line 21) ]                       
                                               
@startuml                                      
skinparam activity {                           
   BackgroundColor #00538D                     
   BorderColor #00538D                         
   BorderThickness 1                           
   BorderRoundCorner 1                         
   ArrowColor #8CC63E                          
   FontName Helvetica                          
   FontColor White                             
   DiamondBackgroundColor #00538D              
   DiamondBorderColor #00538D                  
   DiamondFontName Helvetica                   
   DiamondFontColor White                      
}                                              
title If else elseif example                   
if (If Text) then (yes)                        
:Do Something;                                 
else (No)                                      
endif                                          
if (Option A) then                             
:A Thing>                                      
^^^^^                                          
 Syntax Error? (Assumed diagram type: activity)