Tabbed / Tabbed Compacat UI modes on macOS have a light gray area on top and a toolbar colored with darker gray below. Topmost icons are placed crossing the border between light gray area and darker gray area (see screenshot). A possible solution could be using a uniform gray for both areas (as in Groupedbar Compact UI mode).
Steps to Reproduce:
(1) Open any LO application, e.g. Writer
(2) Select View / User Interface / Tabbed
Topmost icons are rendered crossing border between light gray area on top and darker gray toolbar.
Topmost area as well as toolbar are drawn using same color.
User Profile Reset: No
OpenGL enabled: Yes
Created attachment 151688 [details]
Build ID: 03a2f3ec4316a3953c2fa40e6e59c2ebbc824d09
CPU threads: 4; OS: Mac OS X 10.14.4; UI render: default; VCL: osx;
Locale: fr-FR (fr_FR.UTF-8); UI-Language: en-US