On boot, the splash screen looks ugly

[Uwe Pfeifer]

The boot screen has white background, pink font shadow, and so on.

Here a screenshot:
https://c.nextgamers.eu/s/9yJQ4wGwAdwIjiO

Btw, on system shutdown it all looks correct.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: plymouth-theme-ubuntu-logo 0.9.2-3ubuntu17
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Oct 17 15:00:26 2017
DefaultPlymouth: /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
InstallationDate: Installed on 2017-10-10 (6 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Beta amd64 (20171008)
MachineType: Sony Corporation SVE1512Z1EB
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic.efi.signed root=UUID=2564aa89-4103-43c4-baeb-6dd0433d46c6 ro quiet splash vt.handoff=7
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic.efi.signed root=UUID=2564aa89-4103-43c4-baeb-6dd0433d46c6 ro quiet splash vt.handoff=7
SourcePackage: plymouth
TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/19/2013
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: R0180D5
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnInsydeCorp.:bvrR0180D5:bd03/19/2013:svnSonyCorporation:pnSVE1512Z1EB:pvrC10FTUDV:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.family: VAIO
dmi.product.name: SVE1512Z1EB
dmi.product.version: C10FTUDV
dmi.sys.vendor: Sony Corporation