Active line is unreadable oin case of dark theme

[Coci Web]

Hello,

The active line is unreadable on ubunut 20.04 with the default dark themes.
I assume that modify the /usr/share/gtksourceview-4/styles/tango.xml with the following from:

<color name="aluminium1" value="#eeeeec"/>

to a less harsch colour:

<color name="aluminium1" value="#99999c"/>

Thank's in advance,

cociweb

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome (not installed)
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Jul 12 23:07:26 2020
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=hu_HU.UTF-8
 SHELL=/bin/bash
SourcePackage: meta-gnome3
UpgradeStatus: No upgrade log present (probably fresh install)