Have obvious visual feed back for inline actions such as save.

[NightJar]

Currently (4.x-dev, unreleased) when saving the little icon for the block type updates with a little red circle (draft), a red dot (unpublished changes), or has no 'sub-icon' (published).

However it is not a very intuitive indication of state alteration, and it would also be good to have some kind of more visual response to clicking the save/publish button for a single block.

E.g. Pages have toast notifications pop up when they're saved.

[ScopeyNZ]

The designs have a little thing for this:

I was playing around with something for this:

https://codesandbox.io/s/528l23pwn4

Was hoping to finalise this a little and add it to admin.

[NightJar]

I'm still unsure if something so subtle should be the only indication - however it really is more of a decision for @newleeland and @clarkepaul

[clarkepaul]

I think the pattern should be fine, we can re-assess when its developed and see in action.

[brynwhyman]

Noting that we already have the following issues raised to be reviewed:
Toast message after versioning a block: #364
Animated icon for versioning: #292

Closing this and will ensure to include test scripts/user testing covering this with upcoming UAT.