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[Linux / Windows] Theme Studio pop-out doesn’t have window control buttons / Fluxer custom title bar

(#2665) Bug Fixed desktop theming
by hihi217

Observed behaviour

no window control buttons

Reproduction steps

  1. Open Theme Studio (Settings -> Look and Feel -> Open Theme Studio)
  2. Open pop-out (top right, might be under maximize button (#369))

Build information

Canary 754 (03135b2), Host 0.0.212, Windows 11 10.0.26200 (x64), Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, Locale en-US Canary 754 (03135b2), Host 0.0.212, Linux 6.19.10-061910-generic (x64), Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, Locale en-US

Platform

Windows, Linux

Details

Expected behaviour minimize, maximize and exit buttons visible on screen
  1. Rex changed the status from Needs triage to Fixed

Merged posts

These posts were merged into this one. Their comments are now part of the conversation below, marked with where they came from.

Merged from #2868 Minimize/Maximize/Close buttons are missing in Theme Studio window title bar

nuu <| Ω

Report details

Observed behaviour

Window displays without the buttons to handle the window and you have to right click to close it or use the task manager or the command line.

Reproduction steps

  1. Open your settings and go to Look & feel.
  2. Open theme studio.
  3. Window will appear without the buttons to minimize, maximize or close it in title bar.

Build information

Canary Desktop 2026.527.223435, Web 2026.528.195219, Linux 7.0.10-arch1-1 (x64), Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, Locale en-US

Platform

Linux

Details

Expected behaviour Window should appear normally with buttons on the title bar to handle the window like the main application's window or at least some buttons to handle that behaviuor on other parts of the layout.
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6 comments

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Comment by Fullest
FullestReviewer 1 vote
Can reproduce CR: Canary 754 (03135b2), Host 0.0.212, Linux 7.0.4-100.fc43.x86_64 (x64), Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, Locale en-US
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Comment by mesub
mesubMod 1 vote
Can reproduce CR: Canary 763 (fb9cfe9), Host 0.0.205, Windows 11 10.0.26200 (x64), Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, Locale en-GB
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Comment by ternera
terneraMod 1 vote
Can reproduce CR, for me, window control buttons show up but minimize and restore don't do anything - Canary 763 (fb9cfe9), Host 0.0.205, Windows 11 10.0.26200 (x64), Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, Locale en-US
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Comment by mesub
mesubMod 1 vote edited by moderator Merged from #2868
CR: Canary Desktop 2026.528.23728, Web 2026.528.231208, Windows 11 10.0.26200 (x64), Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, Locale en-GB
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