Fonts are thinner and harder to read with GPU rendering

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• iTerm2 version: 3.2.2 incl 20180110 build from other topic
• OS version: 10.13.6com.googlecode.iterm2.plist

After the last update (unfortunately not sure from which version that was, but I think very recent), text is displayed a lot thinner and very hard to read. This is immediately fixed by disabling the GPU renderer.

This is a 15" mid-2013 Macbook Pro with Retina display.

Profiles->Text->Use thin strokes for AA is "Never". Enabling this in any way makes it even worse.