Solution:
If you have updated to macOS 10.14 (Mojave) you might have noticed that fonts in VSCode are looking blurry if you are not using a high-DPI monitor. A workaround for this is to run

defaults write com.microsoft.VSCode.helper CGFontRenderingFontSmoothingDisabled -bool NO

from the terminal followed by a restart to get back the previous behaviour. Note that this change is global for every application and not specific to VSCode.

• VSCode Version: Version 1.23.1 (1.23.1) - d0182c3417d225529c6d5ad24b7572815d0de9ac
• OS Version: macOS Version 10.14 Beta

Steps to Reproduce:

1. Open VSCode
2. Open a file
3. View said file

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

This is how the fonts look:

I don't expect this is a VSCode issue, but just incase wanted to bring it up earlier rather than later.