• VSCode Version: 1.32.3
• OS Version: macOS 10.14.3

I recently received an issue regarding my theme and a slight discoloration on the background where blocks for text are rendered and the background color I have set. Here is the issue for a reference screenshot.

I've been digging through the dev tools trying to see if there was a transparent layer causing the discoloration or an off color on my part, but the only thing that stood out to me was my background color being converted to rgb format and being passed down to child elements as inline styles. Though, most look correct.

Using the macOS digital color meter I've been able to determine a slight variance in the color I've set:

This may be related to #70782

Steps to Reproduce:

1. install josef/rouge-theme
2. discoloration will be noticeable in the sidebar with a folder open, and a short file. Discoloration is generated in blocks upon hitting a certain line number below the existing text block

Does this issue occur when all extensions are disabled?: Yes