First layer toggle visibility. Useful when the first layer is filter for checking values (pure black with "color" blending). The default shortcut is "`".
Known bug: Does not work when the active layer is "Group layer", I don't know why)
- Copy the folders from "FLTV/" and put them into "~\AppData\Roaming\krita".
- Open Krita, go to "Settings\Configure Krita\Python Plugin Manager" and enable the "FLTV" plugin.
- Reopen Krita.
- For a more in depth explanation, visit Krita Docs