probably since:
commit 0f0fd9c6e3
Date: Thu Oct 27 23:03:08 2022 +0200
tdf#148017 harmonize sidebar .ui files for chart2
Change-Id: Idd2f485443f5b186f2a0d8e2539ed76e41c62e3b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/142897
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Chart Implementation for LibreOffice Calc
The chart2 denotes a second generation re-write done to rid us of the
foul and twisted legacy chart code.
Debugging
Shortcuts
CTRL + F12 creates a layout dump based on the XShapeDumper based on SAL_WARN("chart2", ...