This module allows to set limits to variables, highlighting them in different control elements if the limits are not met.
This is the configuration window for the module, which can be opened by clicking the Thresholds > Limits menu item.
The "Thresholds" list  shows all currently defined limits. In the first column "Variable" choose the variable which limits should be defined for. In the second column "Min." the lower threshold is defined. If the value of the chosen variable is lower as the "Min." threshold the variable is highlighted in the defined color of the color-field . In the third column "Max." the higher threshold is defined. If the value of the chosen variable is higher as the "Max." threshold the variable is highlighted in the defined color of the color-field . The highlight-color for the conditions between "Min." and "Max." is defined in color-field .