Few words about tools I use during game development. All programs are free, and run on Linux.
Last update of Sum and Blossom brought many animations and graphics changes. There is a lot of seamless background textures. I found a Gimp has a very useful layer transformation. Offset. This helped a lot.
Another tool I use last days is a Color Scheme Designer. It seems to be easy to choose three colors for bubbles and a background but is not. It is very convenient to have additional colors calculated automatically - here is a web page: http://colorschemedesigner.com/
MyPaint - I use it with my wacom tablet as a sketch book.
... but final work I have to do using the Inkscape - vector graphics editor. Below a screenshot with a final willow like world selector.
In case of a need of bach conversion I use a magictools. A set of commad line programs that can quickly resize and do other changes in a split of a second.
Bitmap fonts for openGL rendering are prepared with Hiero. And finally all graphic assets are packed in one bitmap with a TexturePacker - a part of libgdx framework.
14 Mar 2013 16:06:46 Sum and Blossom has been released!
I have so much fun during game coding. From the beginning game mechanic looked promising. Original idea, multi-touch and I hope you like a graphics too. Joining and splitting bubbles is fun like a popping bubble wrap. You play just for playing.
There are only 16 levels for now, but I have plenty of ideas for a new worlds with different flowers and bubbles. Rank it on Google Play market and tell your friends if you like this game.