FYI - No action required at this time...

[kb6ibb@KB6IBB-15 wsjtx-build]$ ./wsjtx --style="fusion"
[2020-11-15 11:09:18.529975] [0x00007f4feed9bc80] [info] Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.

(wsjtx:29925): Gtk-WARNING **: 11:09:18.590: Theme parsing error: gtk-contained.css:4703:12: not a number

(wsjtx:29925): Gtk-WARNING **: 11:09:18.591: Theme parsing error: gtk-contained.css:4703:12: Expected a string.

=========================

NAME="Oracle Linux Server"
VERSION="8.3"
ID="ol"
ID_LIKE="fedora"
VARIANT="Server"
VARIANT_ID="server"
VERSION_ID="8.3"
PLATFORM_ID="platform:el8"
PRETTY_NAME="Oracle Linux Server 8.3"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:oracle:linux:8:3:server"
HOME_URL="https://linux.oracle.com/"
BUG_REPORT_URL="https://bugzilla.oracle.com/"

ORACLE_BUGZILLA_PRODUCT="Oracle Linux 8"
ORACLE_BUGZILLA_PRODUCT_VERSION=8.3
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=8.3