mpv: tune uosc options

hosts/common/programs/mpv.nix

@@ -229,10 +229,11 @@ in
       # - <https://github.com/tomasklaen/uosc/blob/main/src/uosc.conf>
       # - <https://superuser.com/questions/1775550/add-new-buttons-to-mpv-uosc-ui>
       timeline_style=bar
+      timeline_line_width=4
+      timeline_size=36
       timeline_persistency=paused,audio
       controls_persistency=paused,audio
       volume_persistency=audio
-      volume_opacity=0.75
 
       # speed_persistency=paused,audio
       # vvv  want a close button?
@@ -241,11 +242,20 @@ in
 
       controls=menu,<video>subtitles,<has_many_audio>audio,<has_many_video>video,<has_many_edition>editions,<stream>stream-quality,space,${rev_btn},${play_pause_btn},${fwd_btn},space,speed:1.0,gap,<video>fullscreen
 
-      text_border=6.0
+      # text_border: shadow to place around icons/text which is rendered over the video
+      text_border=5.0
+      # border_radius: rounding of volume slider, etc.
+      border_radius=5.0
+      font_scale=1.5
       font_bold=yes
+      # refine=text_width: slightly better text rendering
+      refine=text_width
       color=foreground=ff8080,background_text=ff8080
+      # N.B.: if `opacity=` is set non-empty, then ALL items must be specified (else they get 0 opacity).
+      # opacity values *must* be a multiple of 0.1
+      opacity=timeline=0.8,position=1,chapters=0.8,slider=0.8,slider_gauge=0.8,controls=0,speed=0.8,menu=1,submenu=0.4,border=1,title=0.8,tooltip=1,thumbnail=1,curtain=0.8,idle_indicator=0.8,audio_indicator=0.5,buffering_indicator=0.3,playlist_position=0.8
 
-      ui_scale=1.0
+      stream_quality_options=1440,1080,720,480,360,240,144
     '';
     fs.".config/mpv/script-opts/playlistmanager.conf".symlink.text = ''
       # script docs: <https://github.com/jonniek/mpv-playlistmanager>