Created attachment 166651 [details] example file showing intended tree lines Tree views for non gtk3 actually do display lines but are immediately painted over by the entries. I noticed this while investigating bug 136962 on my not so powerful newly set-up windows LO development computer :-) Attachment 'non_gtk3_treeview_with_lines_examples.odt' shows Windows platform lines vs no lines differences and Linux X11 and KF5 examples with lines. Link to patch that makes the lines show: https://gerrit.libreoffice.org/c/core/+/104709
Reproduced Arch Linux 64-bit Version: 7.1.0.0.alpha1+ Build ID: 496771a6466d6a48f0bcbd8976df24308e052f38 CPU threads: 8; OS: Linux 5.9; UI render: default; VCL: kf5 Locale: fi-FI (fi_FI.UTF-8); UI: en-US Calc: threaded Built on 28 October 2020
Jim Raykowski committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/8fca5e32f3ab1529ec33c1a4eeb863dda137b652 tdf#137693 fix sal tree net line rendering It will be available in 7.1.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.