They have red/blue/green vague symbols to denote planet type yet also use the same colors (with different, but still vague symbols) for planet tech specialty. The only real way to easily tell them apart is the planet type symbol is next to the planet name while tech symbol is next to the resource value. They really should have made it clearer. Either use different colors, have a colored letter 'T' for tech specialty, or something. Instead of colored symbols for planet type, use a picture of a factory for industrial, a city for culture, and a volcano for hazardous.
Constantly running into confusion with new players thinking the planet type icon is a tech specialty. It would be a welcome improvement if any eventual reprint addresses this.
Edited by GrooveChamp