Some feedback of CB1 Blockly v0.9 suggests that the angular input widget (angular field) might be misleading when used for motor speed parameters. The reason we put it this way is to reduce the amout of keyboard typing in visual programming. Especially on tablet environment, invoking the virtual onscreen keyboard to input alphanumerical values somehow interrupts the flow (and fun) of drag-and-drop programming.
As a compromise, t2t will remove the angular degree symbol on the widget and hope CB1 Blockly v1.0.0 users will be less likely misled to the UI.
Under the hood, this input value is divided by 360 and is used as the percentage of power output for the motor module. For example, 120 will be translated into 120/360 = 33.33%.