When prefab of Particle System is created, "Quality" dropdown icon overlaps with text under Noise module from Particle System in prefab override window, refer attached screenshot.

Steps to reproduce:
1. Create a new project
2. Hierarchy > Create > Effects > Particle System
3. Make a Prefab of Particle System
4. Change in property in prefab
5. Click on Override > Select Particle System
6. Enable Noise module and expand

Actual Result:
Quality dropdown icon is overlap with text

Expected Result:
Quality dropdown icon doesn't overlap with text

Occurring on:
2020.2.0a10, 2020.1.0b7, 2019.3.12f1, 2019.3.0a3

Working fine in:
2019.3.0a2, 2019.2.13f1

Environment:
Windows10 and macOS 10.14