Define the size in the code

[GXSZone]

  <dimen name="acp_seek_progress_corner_radius">4dp</dimen>
  <dimen name="acp_seek_progress_padding">5dp</dimen>
  <dimen name="acp_seek_progress_height">10dp</dimen>
  <dimen name="acp_thumb_stroke_width">4dp</dimen>
  <dimen name="acp_thumb_size_full">20dp</dimen>
  <dimen name="acp_thumb_size_default">24dp</dimen>
  <dimen name="acp_thumb_ripple_radius">15dp</dimen>

1. The value defined above can be set in the code

2. SeekBar can customize the color array

[smelfungus]

@GXSZone, thank you for your feature request. I'll look into it for future releases.