* Honor Ghostty background-opacity across all cmux chrome
Parse background-opacity from Ghostty config and propagate it through
the entire chrome pipeline: bonsplit tab bar (via RRGGBBAA hex),
browser panel/omnibar, titlebar, empty panel, and window background.
Decouple glass effect from sidebar blend mode — bgGlassEnabled now
defaults to false so opacity works independently. Add
GhosttyBackgroundTheme helper for consistent color+opacity resolution
across all UI surfaces.
Fixes https://github.com/manaflow-ai/cmux/issues/263
* Titlebar and chrome opacity matches terminal background-opacity
Use CALayer-level opacity for the titlebar background instead of SwiftUI
Color alpha, matching the terminal's Metal compositing path. Account for
the double alpha stacking in the terminal area (Bonsplit container bg +
Ghostty renderer) so the titlebar visually matches.
Also fix opacity-only config changes not triggering titlebar refresh on
Cmd+Shift+, reload.
- Notification/focus flash uses workspace customColor (fallback: accent)
- Selection bar/indicator uses workspace customColor when set
- Flash color propagated through Panel.triggerFlash(color:) API
- Browser panel flash overlay uses workspace color
- Regression tests for flash color resolution
Fixes https://github.com/manaflow-ai/cmux/issues/557
* Hide new-tab browser toggles and align dark-mode button style
* Switch forced dark mode from dimming overlay to dark theme
* Add tri-state browser theme mode for embedded web view
* Hide browser theme menu chevron in toolbar
* Use outline icons for browser theme toggle
* Align browser theme icon tint with DevTools button
* Force monochrome rendering for browser toolbar icons
* Reduce browser theme icon weight for visual parity
* Tune browser theme icon stroke for perceptual color match
* Force flat SF Symbol color rendering for toolbar icons
* Use button popover for browser theme selector
* Address PR 242 follow-ups for titlebar and browser background
* Restore titlebar border per follow-up scope
* Refresh browser under-page color with Ghostty opacity
* Browser: theme blank page fallback for about:blank
* Browser: keep new tabs webview-less until first nav
* Remove border below titlebar
Remove the 1px separator line overlay at the bottom of the custom
titlebar and its associated fakeTitlebarSeparatorColor computed property.
* Remove tab hover background in bonsplit
Update bonsplit submodule to remove the background fill on hovered
non-selected tabs.
* Restore titlebar border with system separator color, hover bg on all tabs, browser theme bg
- Add back 1px bottom border on titlebar using NSColor.separatorColor
(matches bonsplit tab separator color)
- Tab hover background now applies to all tabs including the selected one
- Browser address bar and under-page background now use Ghostty theme
background color instead of window background
Handle multi-button mouse events in the browser panel's WKWebView:
- Mouse back button (button 3) triggers goBack(), forward button
(button 4) triggers goForward(), enabling side-button navigation
on mice like Logitech
- Middle-click (button 2) on a link opens it in a new browser tab
by hit-testing the click position via JavaScript and routing through
the existing openLinkInNewTab mechanism
