[tbb-bugs] #13818 [Tor Browser]: [PATCH] Active tab looks ugly (inherits system color scheme only partially)

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#13818: [PATCH] Active tab looks ugly (inherits system color scheme only partially)
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     Reporter:  gentoo_root  |      Owner:  tbb-team
         Type:  defect       |     Status:  needs_review
     Priority:  normal       |  Milestone:
    Component:  Tor Browser  |    Version:
   Resolution:               |   Keywords:  TorBrowserTeam201501R
Actual Points:               |  Parent ID:
       Points:               |
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Comment (by mcs):

 One more thing:  Kathy reminded me that gk asked during the last tbb-dev
 meeting what kind of testing we did to convince ourselves that this patch
 will not introduce a fingerprinting vector.  We created a web page that
 tried to load chrome://browser/skin/tabbrowser/tab-selected-start.svg
 several ways:
 * <img src="...">
 * <iframe src="...">
 * <object type="data/svg+xml" ...>
 The only image load this was not blocked is the <img>-based one, and (as
 far as I know) the SVG DOM cannot be accessed from an <img> tag (so there
 is no way for a web page to ask for CSS computed style in order to grab
 the color values we use).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13818#comment:14>
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