Just a little update since this is basically a worklog as well... Did some research and it seems that most of the world is still stuck with that god among resolutions, the 1366x768. So I have been reworking the UI to fit into that and use it to the fullest (screen that is):
Half of the buttons don't work yet, but gettting ever closer for sure.
The palette got smaller as you can now adjust color directly via keys.
Implementing a proper zoom on the work area has been a nightmare, what with the scroll ratios (and I want to work just like photoshop, where you space-drag the canvas) so it's been sent to the very back of the todo queue.
Coming in the future would be the stuff already mentioned as well as some sort of "standartization" of tiles - all tilesets to have 128 tiles tops and more specialized tilesets, such as "Glow", "Wheels", etc.
I prefer all the tiles in a set to be visible at a glance, even if it makes them smaller instead of scrolling - what do you prefer?
Any route u choose, i gladly buy it.
I can see it!
On a more serious note, if I do go the kickstarter route it would probably be very reasonably priced AND packed with value (perhaps link that to some reasonable stretch goals, so that everybody benefits). So far we have seen only the tech tileset, but I'd like to (time and resources provided) to make A LOT of tilesets, some of them quite different, like this (made a quick sketch):
By combining the different parts, scales, colors, angles you could pretty much create whatever you like.