unable to change color of box in flowchart

[harshdamaniahd]

The flow chart is not accepting the below styles: st=>start: Start|past:>http://www.google.com[blank] e=>end: End|future:>http://www.google.com op1=>operation: My Operation|past op2=>operation: Test|future sub1=>subroutine: My Subroutine|invalid cond=>condition: Yes or No?|approved:>http://www.google.com c2=>condition: Good idea|rejected io=>inputoutput: catch something...|future st->op1(right)->cond cond(yes, right)->c2 cond(no)->sub1(left)->op1 c2(yes)->io->e c2(no)->op2->e