UV Selection dropdown icon is overlapping with its title from "UV Editor" Window, refer attached screenshot

Steps to repro:
1. Create a new project.
2. Install "ProBuilder" package from Window > Package Manager.
3. Tools > ProBuilder > ProBuilder Window
4. Open UV Editor from ProBuilder window
5. Change UV options from UV Selection dropdown

Actual Result:
UV Selection dropdown icon gets overlap

Expected Result:
UV Selection dropdown icon and title is visible clearly without any overlaps

Reproducible in:
2020.1.0a6, 2019.3.0b5, 2019.3.0a3

Working fine on:
2019.3.0a2, 2019.2.6f1

Package occurring version: 4.1.0, 4.0.2

Environment:
Windows 10 & macOS 10.14