We're planning on updating the look and feel of the gems with the next update, which should help the darker exits stand out more! We really love the color variety, when the whole look changes from board to board based on which random gem combination is chosen.
Though we were not as acutely aware of it when we started, apps with a higher price points come down to almost 100% marketing. Obviously if you're a known developer in the market, you have a much better chance with a higher price point. If you're starting out, like we did, with absolutely no name presence, it is a very tough battle to climb with a higher price. We believe there is a lot of quality and depth in Gemmed, and we priced it at $2.99 based on where we felt it stood relative to other titles at that price point.
We do realize though that with our uphill battle (mountain?), we need to be competitive in order to get our name out there, so with a higher price, we can try and provide sales when we release updates, and try to release quality updates as often as possible. (Right now, it's on sale for $0.99 until Feb 1st.) As we add quality updates, and if we can get the game in front of enough people, we may be able to justifiably (to them) keep it at $2.99.
Without a doubt, we're selling more right now at a lower price than we were before, but it's still low on the radar, and there may come a time when the difference in price will be negligible to the numbers. In the end, if Gemmed always does better at $0.99, it will certainly lay the groundwork for our future projects to be accepted exponentially faster.