What steps will reproduce the problem?
1. Create an overlay box with position set to 'center'
2. Append additional text to overlay box with a script, causing it to extend in length
What is the expected output? What do you see instead?
Expect box to either (1) automatically re-center when its size increases, or (2) extend in size without re-centering, and to remain fixed in position.
Box will expand in size without re-centering, but if screen is scrolled, box will suddenly jump to re-center.
What version of the product are you using? On what operating system?
0.1.0