Created attachment 8716848 [details] testcase 1 - Arrow .tab-drop-indicator between tabs is invisible under dark content.html >>> My Info: Win7_64, Nightly 46, 32bit, ID 20160207030402 STR: 1. Enable any dark lwtheme, e.g. https://addons.mozilla.org/ru/firefox/addon/just-black/ 2. Open new tab 3. Open "testcase 1" 4. Drag any black rectangle between any 2 tabs AR: "drop" indicator (arrow between tabs) isn't visible under image/link. ER: "drop" indicator should be visible Note: bug 1209158 could make it better, but still, the drop indicator is drawn _under_ the thumbnail of dragging content, which makes it less visible. GoogleChrome draws that arrow _above_ the dragging content, so it (the arrow) is visible when I drag any kind of content.
Created attachment 8716849 [details] screenshot 1 - Arrow .tab-drop-indicator between tabs is invisible under dark content.png
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