[Bug 52436] New: In Light Blue theme, checkable toggle buttons (BS_AUTOCHECKBOX) look unchecked when hovered

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52436

            Bug ID: 52436
           Summary: In Light Blue theme, checkable toggle buttons
                    (BS_AUTOCHECKBOX) look unchecked when hovered
           Product: Wine
           Version: 7.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: comctl32
          Assignee: wine-bugs at winehq.org
          Reporter: nyanpasu64 at tuta.io
      Distribution: ---

Created attachment 71706
  --> https://bugs.winehq.org/attachment.cgi?id=71706
Screenshot of the "checked and hovered" button state in Dn-FamiTracker (which
looks unchecked)

- In winecfg -> Desktop Integration tab, set Theme to Light (Color defaults to
Blue) and Apply. This bug does not occur on Light -> Classic Blue.

- Download, extract, and run Dn-FamiTracker
(https://github.com/Dn-Programming-Core-Management/Dn-FamiTracker/releases/download/Dn0.4.0.1/Dn-FamiTracker_v0401_x86.7z).

The toolbar should contain a "Follow-mode" checkable button, checked (blue) by
default. This is implemented as BS_AUTOCHECKBOX | BS_PUSHLIKE
(https://github.com/Dn-Programming-Core-Management/Dn-FamiTracker/blob/f1d2fcfae515650300c412793756475707485306/Dn-FamiTracker.rc#L1329).

As I mentioned in Bug 52434, I don't like how checked toggle buttons are bright
blue.

- Hover the "Follow-mode" button.

The color changes to white with a blue border. If you move your mouse onto the
button and immediately stop moving the mouse, the color will fail to change
until you move your mouse further. I think this inconsistency is a bug (either
in wine or in FamiTracker's redraw handling).

Note that the same "white with a blue border" color scheme appears if you hover
the adjacent "Compact view" toggle button (unchecked by default).

- Click the "Follow-mode" button to uncheck it.

It turns blue while clicked, and white with a blue border when released.

- Click it again to check it.

It turns blue while clicked, and white with a blue border when released. The
problem is that the "checked and hovered" color scheme looks like it's
unchecked (because the button is white), and is indistinguishable from
"unchecked and hovered". Only when you move your mouse away from the button
does it turn blue again, indicating it's checked.

This behavior is not specific to Dn-FamiTracker. If you download and
extract/install and run OpenMPT
(https://openmpt.org/download_file.php?file=OpenMPT-1.30.01.00-Setup.exe), then
click Help -> Example Modules and click any song, the Mute and Surround buttons
at the bottom of the page
(https://github.com/OpenMPT/openmpt/blob/062b6264fb9325a8c407908ecfdc6f9fb95c0756/mptrack/mptrack.rc#L311-L316)
also have "checked and hovered" indistinguishable from "unchecked and hovered".
However, OpenMPT's toggle buttons reliably turn "white with a blue border",
without randomly waiting for mouse movement.

I suspect that the "Light Blue" theme only highlights buttons after your mouse
spends a small amount of time lingering over the button (so both regular and
toggle buttons don't change color if you rapidly move your mouse over it). But
in OpenMPT, the hover timer expiring reliably redraws the button in hovered
state, whereas in FamiTracker it doesn't.

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