Font size in blocks cannot be saved to a file properly when size is increased.
Steps to reproduce:
1. Insert 3 blocks. Text size is same among 3 blocks.
2. Left block is still default. Center block is increased font size. Right block is decreased size.
3. Save as a file and close the flow.
4. Reopen the flow, and then font size of center block is reset.
Agile Requirements Designer 2.10+