The theme engine gmmp uses (aesthetic) was deprecated by its developer, so I decided to completely take it over and reworked it to better suit gmmp. Performance is improved and everything should get themed immediately instead of after the UI loads (on slower devices you could see the colors change, but it wasnt really noticeable on better devices). One of the big reasons for all of this was the main new feature of beta 6, dynamic theming.
The dynamic theme is on by default and will choose theme colors based off album or artist artwork.
Under the advanced settings, you will have more fine grained control over how the dynamic theme works. The top 3 options control which parts of the UI get themed. Now playing is self explanatory, grid items is for the album, artist, and album artist grid list, and other is for the rest of the UI. The last 2 settings control the color selection. Use single color will pick a single color from the artwork, and create 3 different shades of that color for the theme. With this setting off, the accent color will typically be different from the primary and primary dark. The last setting, "Prefer Vibrant Colors", gives priority to vibrant colors over the more bland/muted colors. The screen shots below will show the differences.
Here is a video showing the theme changing as the playing track changes:
3.0 Beta 6 (2020-05-23):
New:
Updated aesthetc and material dialogs to latest versions
Reworked theming code for better performance
Added dynamic theming mode based off of artwork colors (settings -> ui -> theme builder -> dynamic colors)
Added advanced options to control where dynamic theming is used
Added advanced option to prefer using vibrant colors over muted for the dynamic theme
Fixes:
Now playing should now get the rating from gmmp's database instead of the tags
Fixed action bar colors for multi select
Album details list item will no longer disappear for a short period of time after being selected
Fixed issue where scanner notification would not be dismissable
Fixed play next and enqueue for smart playlists
Fixed parsing lyric strings that begin with a byte order mark (BOM)
Fixed issue with write permission not being prompted after restoring settings
Long pressing in search with no context menu will now bring up the popup with context menu options
Prefer embedded art setting should now properly update album art everywhere on track change