A few months ago I had to change the system of notifications. These "toasts" are now attached to screen and not freely floating. In this case, info toast is attached to "Presets" screen, which is anyway immediately hidden, so toast does not have enough time to display itself.
Improved little bit. You won't probably like me, because this add's 2 seconds delay when using presets, but let's try it in practice

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Icons for other add-ons or API: sure, just wait a while. I counted 13 sets of icons we need x 5 resolutions x 3 icons per resolution (1 for old A7- and 2 for new A8+), so a lot of work. We'll first test it on Free/Pro version, then generate rest of icons.