git: openjdk/jfx-sandbox: tsayao_xlib: Set background

[duke]

Changeset: e88910b0
Author:    Thiago Milczarek Sayão <thiago.sayao at gmail.com>
Date:      2022-06-19 18:21:52 +0000
URL:       https://git.openjdk.org/jfx-sandbox/commit/e88910b062f9244cfd5e380dcaf11badac46dd9d

Set background

! modules/javafx.graphics/src/main/native-glass/gtk/glass_window.cpp
! modules/javafx.graphics/src/main/native-glass/gtk/glass_window.h