like it says
While all players can improve their skills with training, not all have the ability to become superstars. Potential acts as a soft cap on player skill. When the player's skills reach the maximum their potential will allow, their training will slow down considerably, but will not become zero. All players active before season 5 have a potential rating of "allstar". Potential is described using the following terms, in order from worst to best:
is the soft cap the color of the potential?
like Pereniall allstar is the same color as sensational. so would sensational be the soft cap?