I absolutely love that Poweramp let me customize pretty much everything.
One thing I miss though is the ability to blank/dim the TV screen when casting (to prevent burning and lower the TV power usage).
Here is a suggestion:
When I cast Poweramp to my Chromecast, I get the usual casting icon in the upper right corner.
When clicking it I see a slider to adjust the volume.
Please add another slider to adjust the Dim Level, from 0% (no change to the picture) to 100% (picture is completely black).
Also add: Dim screen after [ ] seconds of user inactivity
Examples:
100% dim level and 0 second timeout = the TV always show a black screen (the TV is for audio only). You look at the phone for the GUI/track changes/etc. The TV screen don't light up even if you manually change track or anything.
72% dim level and 5 second timeout = Show full brightness on the TV for as long as there are any form of interactive user activity in the Poweramp app. After 5 seconds of non-activity, the TV screen brightness lowers to very very dark but not completely black. When there are user activity, the TV screen lights up and dim again after 5 sec of non-activity.
0% dim level = you don't want to dim the TV screen at all. This is the default.
When Dim Level == 0, the timeout option (and the checkbox described below) should be grayed-out.
As soon as you move the Dim slider (Dim Level != 0), the timeout-option (and checkbox) should light up, where you can set a custom timeout. Default could be 5 seconds I think.
Bonus:
Also add a checkbox beneith the timeout: [ ] Temporarily light up on track change in the playlist
That is, treat an automatic track change (moving forward in the playlist) as user input. = the TV screen will temporarily light up (un-dim), showing the details for the new song and then dim back down. Note: If Poweramp is finished playing, this should not light up the screen. If you listen to a long book/whatever, and doze off, you don't want to be awakened by sudden bright light from the TV.
PS: Semi-related request: https://forum.powerampapp.com/topic/23068-chromecast-screen-saver/