The menu items under "Styles" in Groupedbar user interface has "Header 1" and "Header 2", which corresponds to "Heading 1" and "Heading 2" cell styles. This unnecessary term mismatch causes confusion.
Steps to reproduce:
1. Make sure experimental features are enabled from Tools > Options > LibreOffice > Advanced;
2. Switch to Groupedbar UI via menu View > User Interface > Groupedbar (NOT Groupedbar Compact);
3. Click on the "Styles" dropdown button from the Groupedbar interface, see "Header 1" and "Header 2" items;
4. Choose one of them, then check the cell style to see they are actually applied with "Heading 1/2" style.
Reproduced with both 6.4.6 and 7.0.2 under Windows 10:
Version: 220.127.116.11 (x64)
Build ID: 0ce51a4fd21bff07a5c061082cc82c5ed232f115
CPU threads: 2; OS: Windows 10.0 Build 18363; UI render: default; VCL: win;
Locale: zh-CN (zh_CN); UI-Language: en-US
Version: 18.104.22.168 (x64)
Build ID: 8349ace3c3162073abd90d81fd06dcfb6b36b994
CPU threads: 2; OS: Windows 10.0 Build 18363; UI render: Skia/Raster; VCL: win
Locale: zh-CN (zh_CN); 界面: zh-CN
Ming Hua committed a patch related to this issue.
It has been pushed to "master":
Resolves tdf#137490: Rename "Header 1/2" menu items to "Heading 1/2" ...
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:
Affected users are encouraged to test the fix and report feedback.