[feature request] Use system-native theme for default title bar

[LeBrick-Studio]

• [x] I have used the search tool and did not find an issue describing my idea.

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Add a key or an option to show tabs and "ONLYOFFICE" menu button on top of system title bar. Perhaps make it optional (like in Firefox), e.g. use a separate key for it

Examples:

Mozilla Firefox with system title bar ON and OFF

Google Chrome's title bar on Windows 11, Windows 7 and Ubuntu 20.04

[ShockwaveNN]

Hi, could you check command line flags:

--system-title-bar

and

--custom-title-bar

They change window behavior same way as Firefox on your screenshot

[LeBrick-Studio]

Well it's kind of not the same. The suggestion was to integrate tabs into native-themed title bar across all platforms by default (like the lower Firefox window), and --system-title-bar key will enable actual system title bar with tabs row under it (see upper Firefox window).

I made a few better illustrations

How it works without any keys:

How it works with --system-title-bar key:

Integrated title bar concept art (what do I suggest):

[ShockwaveNN]

@LeBrick-Studio Not sure that we can do that in QT

Do you know any QT application that can do that?

[ShockwaveNN]

This issue was closed due to no response.