Setting LCD gamma / contrast (IntelliJ IDEA, JDK 8)

I am having trouble with anti-aliased text in IntelliJ IDEA. That thing for some reason ships with its own version of OpenJDK 8. Anyway... sub-pixel aliasing is acceptable with dark-on-bright text:

But the gamma is wrong for bright-on-dark text:

Which means in this scheme, text looks as if it was bold-face and horizontally smeared/fuzzy.

Is it possible to specify a system property or hack the system otherwise to change the gamma for AA interpolation towards darker colours? I already choose a very fine font (FicaCode Light), there is simply no font that shows less bold on this computer (Linux with Gnome 3, 1920x1080 display).

---

Edit: I am really looking for a way to control the AA gamma. I have not used IDEA 2017.1 EAP, but the release version which comes already with the 'fixed' bundled tuned version 1.8.0_112, that is mentioned in the gist comment. If I download that version, I get exactly the same pixel output as the two images above. These are the idea64.jvmoptions:

custom IntelliJ IDEA VM options

-Xms128m
-Xmx750m
-XX:ReservedCodeCacheSize=240m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-Dawt.useSystemAAFontSettings=lcd
-Dsun.java2d.renderer=sun.java2d.marlin.MarlinRenderingEngine
-Djava2d.font.loadFontConf=false

Adding or removing the last property simply makes zero difference, also changing from lcd to on or off has zero effect.

Compare these pictures to the regular OpenJDK 1.8.0_121 that I installed via Debian:

Clearly here the AA is broken (at 1:1 it looks totally coloured). So I think the subpixel rendering of the bundled version is basically correct. Only it uses the wrong gamma for light text on dark background.

---

Edit: After more investigation, the problem boils down to this: I can use a custom font.conf file with hintstyle between hintslight, hintmedium and hintfull. For slight hinting, the font looks balanced in terms of aspect ratio, but the anti-aliasing has wrong gamma, and so the font lines are thick (everything looks bold face). For medium or full hinting, the font appears more thin-lined and sharp, but now the aspect ratio is broken, the font is too wide.

You said that the normal openJDK works the way you want him to work, correct?

If true, Why don't you change the JDK IntelliJ use? I believe it is platform SDK in preferences.

FWIW, although zooming into the current rendering (IC 2020.3) looks similar to the original screenshot:

I no longer feel this looks too bold or blurry. Perhaps it's the slight change of font (using JetBrains Mono now).