This only occurs if you have generated video preview thumbnails for it.
You can locate the BIF file, and rename/move/delete it, and the video when paused will not change in brightness.
The screen is dimmed when a preview thumbnail is shown. I think the devs forgot to undim it once the preview times out and the GUI overlay goes.
The BIF
files can be located here:
Library/Application Support/Plex Media Server/Media/localhost/[0-9a-f]/[0-9a-f]{39}.bundle/Contents/Indexes/index-sd.bif
function plex_list_bifs() {
set +o posix
cd "/<INSERT_PATH_PLEX_HERE>/Library/Application Support/Plex Media Server/Media/localhost/" || return
echo -e "\033[48;5;166;97;1m Finding all BIF files: \033[0m"
find . -type f -name \*.bif -print0 | \
du -cbs --files0-from=- | \
tee >(gawk '{a+=$1} END{printf "%d\n%d\n", a/NR, NR}' ) | \
numfmt --from-unit=1 --to=iec-i --suffix=B --format %.3f --field 1 --padding=10
cd "$OLDPWD" || return
}
On the web Plex client, Get Info
, then View XML
, you will see the XML tag indexes="sd"
if there are preview thumbnails (i.e. an index-sd.bif
).