osc: improve look of seekranges

DOCS/man/osc.rst

@@ -167,9 +167,14 @@ Configurable Options
 ``seekbarstyle``
     Default: bar
 
-    Sets the style of the seekbar, slider (diamond marker), knob (circle
-    marker with guide), or bar (fill).
-    Default pre-0.21.0 was 'slider'.
+    Sets the style of the playback position marker and overall shape
+    of the seekbar: ``bar``, ``diamond`` or ``knob``.
+
+``seekbarhandlesize``
+    Default: 0.6
+
+    Size ratio of the seek handle if ``seekbarstyle`` is set to ``dimaond``
+    or ``knob``. This is relative to the full height of the seekbar.
 
 ``seekbarkeyframes``
     Default: yes
@@ -180,6 +185,28 @@ Configurable Options
     useful in cases where keyframes cannot be found. Note that using exact
     seeks can potentially make mouse dragging much slower.
 
+``seekrangestyle``
+    Default: inverted
+
+    Display seekable ranges on the seekbar. ``bar`` shows them on the full
+    height of the bar, ``line`` as a thick line and ``inverted`` as a thin
+    line that is inverted over playback position markers. ``none`` will hide
+    them. Additionally, ``slider`` will show a permanent handle inside the seekbar
+    with cached ranges marked inside. Note that these will look differently
+    based on the seekbarstyle option. Also, ``slider`` does not work with
+    ``seekbarstyle`` set to ``bar``.
+
+``seekrangeseparate``
+    Default: yes
+
+    Controls whether to show line-style seekable ranges on top of the
+    seekbar or separately if ``seekbarstyle`` is set to ``bar``.
+
+``seekrangealpha``
+    Default: 200
+
+    Alpha of the seekable ranges, 0 (opaque) to 255 (fully transparent).
+
 ``deadzonesize``
     Default: 0.5
 
@@ -281,11 +308,6 @@ Configurable Options
 
     Display timecodes with milliseconds
 
-``seekranges``
-    Default: yes
-
-    Display seekable ranges on the seekbar
-
 ``visibility``
     Default: auto (auto hide/show on mouse move)