Overlay is not the same for 2d and 3d displays

[hqnghi88]

Describe the bug
The size and the positioning of overlay (and its elements) are not the same in 2d and 3d displays

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Visualization and User Interaction/Visualization/Legend - Overlay.gaml'
2. Copy the display map and rename to map1, change the new one to 2d
3. Click on 'overlay' experiment button
4. See the difference

Expected behavior
Same size and position of overlay as it normally used to show the legends and must be the same in any case.
Screenshots
The difference is more when the size of is bigger, ie:

Desktop (please complete the following information):

• OS: Sequoia
• PC Model: Air 15 m3
• GAMA version:git