First of all, thank you for the comprehensive feedback! You're probably right that the ui wasn't very intuitive. But I'm not sure a yellow box would have enough contrast, especially against the lights room which are also yellow-ish. But the outline-box with an arrow concept is something we could try a few colors with to see what looks best. On the icon-size, you're most definitely right, it was the biggest (tiniest) mistake we made. We are glad you liked it :)