Solution: You likely downloaded a 10-bit HDR file but are playing on an 8-bit SDR monitor without a proper renderer. Fix: Use VLC Media Player (version 3.0+) or MPC-HC with madVR. Do not use Windows default "Movies & TV" app.
If the risks of index of outweigh the benefits, or if you simply cannot find a live directory, there are legitimate ways to achieve "extra quality" for Arrow Season 1.
Before diving into the "how," let's break down the "what." The keyword index of arrow s1 extra quality is a search operator hybrid.
When combined, the phrase locates unprotected directories on the web that host Arrow Season 1 files—typically in MKV or MP4 format—at higher-than-average resolutions (1080p or 2160p) and bitrates.
intitle:index.of? "Arrow" "S01E01" 1080p x265 AAC 5.1
Often, "extra quality" indexes include PGS (Blu-ray) subtitles. Use MKVToolNix to extract forced subtitles for the flashback sequences (which sometimes feature Chinese or Russian dialogue).