Alt+Tab default delay of 150ms is too long

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Status changed to 'Confirmed' because the bug affects multiple users.

this needs design input before being set as confirmed.

I don't think that this is the same bug as bug #838232. If I'm reading that bug correctly, bug #838232 is about reducing the delay for which the Alt+Tab switcher turns into the Alt+Grave switcher. However, this bug is about reducing the delay for the Alt+Tab switcher appearing at all.

Here's a patch that makes the delay configurable instead of hardcoding it to 50ms.

its not merged yet why fix committed?

This bug was fixed in the package unity - 5.6.0-0ubuntu1

---------------
unity (5.6.0-0ubuntu1) precise; urgency=low

  * New upstream release.
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    - unity-applications-daemon crashed with SIGSEGV in
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      use (LP: #934061)
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    - Unity Dash should support Keywords parameter in .desktop (formerly X
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    - Support FD.o Desktop Actions spec (LP: #942042)
    - Unity hangs when touching my touchpad/trackpad (LP: #942625)
    - [regression] Pressing alt doesn't show the menu title bar in top panel
      (LP: #943194)
    - Alt + F (or other mnemonic) doesn't work in gnome-terminal (LP: #943239)
    - [unity 5.6] Using Alt+F1 or Alt+F2 sends a ";3P" or ";3Q" to the active
      windows (LP: #943456)
    - [unity 5.6] holding alt and pressing a direction opens the alt-tab list
      in a buggy way (LP: #943902)
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      (LP: #944674)
    - Dash - Keyboard navigation for search filters is broken (LP: #844033)
    - Dash - If mouse highlights one icon in grid, keyboard navigation
      highlights another, so there are 2 highlighted icons (LP: #817436)
    - Alt+Tab default delay of 150ms is too long (LP: #888636)
    - Keyboard shortcut - F10 shortcut is used to show menu and this is wrong
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    - Launcher switcher...