cursor is always white

Tilda's cursor is always white regardless of the selected color scheme. That means if the background is white, the cursor is not visible; if black -- the character under it is not visible. However, if a palette (Tango, Linux console, ...) is chosen, the color gets set properly, but only for the current run. After tilda is restarted the problem persists.

Relevant tickets and patches:

* https://github.com/lanoxx/tilda/issues/344
* https://github.com/lanoxx/tilda/pull/358/commits/a39b5bb8acb404cb7fbfdec4cb7447653c1b44e8

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: tilda 1.4.1-2
ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
Uname: Linux 4.15.0-36-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Oct 15 23:54:25 2018
InstallationDate: Installed on 2018-10-14 (1 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: tilda
UpgradeStatus: No upgrade log present (probably fresh install)