Playback speed icons

[worldjoe]

Description: Support for displaying playback speed in the OSD when playback speed is modified.

Details:

• Add-on version: develop branch
• Kodi version: 18.5
• OS Platform: all
• Hardware: all

Checklist

• [X] I have included a link to a log (or at the very least a link to a forum post with a log) from a session that had the issue - not applicable
• [X] I have added appropriate GitHub labels

[worldjoe]

This was rewritten and merged: https://github.com/plexinc/plex-for-kodi/commit/680fc4f3e164dea7de615e07b517a8ee04f158d7 Thank you!