"Crossover Equalizer" fader issue

[bratpeki]

System Information

Any

LMMS Version(s)

Nightly

Summary

Crossover Equalizer (CE for short) seems to use a fader type used by the mixer. However, CE doesn't show the loudness of individual bands, which means one of two fixes is in order:

1. Make CE display the loudness of the bands
2. Have CE use a proper fader class

The second solution somewhat relates to #7728 which is about making the "Master volume" fader use a dB scale. In that case both faders would be using a dB scale but without using meters to show the signal. So ideally they could share the same class for their implementations.

Additionally, the faders overextend into the button below:

Expected Behaviour

1. A proper fader class is used, depending on which of the two functionalities we agree on
2. The length of the faders is adjusted

Please search the issue tracker for existing bug reports before submitting your own.

• I have searched all existing issues and confirmed that this is not a duplicate.