Light theme with a slightly darkened background

[monochromer]

How about adding a background like in your code snippets in markdown?
For example:

function thunkify(fn) {
  return function() {
    var args = [].slice.call( arguments );
    return function(cb) {
      args.push( cb );
      return fn.apply( null, args );
    };
  };
}

The pure white color makes eyes more tired.

[ianyepan]

You can put preferences and personal colour tweaks in your settings.json

[monochromer]

You can put preferences and personal colour tweaks in your settings.json

Perhaps it would be useful not only for me

[clo4]

You can put preferences and personal colour tweaks in your settings.json

For reference, here's an example settings.json .

// Merge this with your current config (don't copy the root object)
{
  "workbench.colorCustomizations": {
    "[GitHub Light]": {
      // This is slightly darker than GitHub code blocks for better contrast with surrounding UI.
      // Current background color of code blocks (July, 2020):  #f6f8fa
      "editor.background": "#f3f5f7"
    }
  }
}

To use it: Ctrl / Cmd+Shift+P, then begin typing Preferences: Open Settings (JSON)

Perhaps it would be useful not only for me

For sure! Personally I prefer the default, but there's definitely a set of people that prefer a slightly darker editor background. Modifying it yourself is probably your best option for now.