Configuration: Thresholds / tray icon
On this page it is possible to set the visual appearance of the tray icons. By default, the icon displays the current temperature value of the hard disk (and the health symbol: 
alternating if the health value is under the configured threshold).
The colors can be configured in three different steps: it is possible to configure the foreground and background color for low temperature (green level), high temperature (red level) and temperature between the low and high settings (yellow level). The threshold values for low and high temperatures can be configured on this page. Any background or foreground color can be transparent. For this, please specify RED=254, GREEN=254, BLUE=255 in the “Define Custom Colors” dialog. This color will be transparent on both the status window and the tray icon.
It is possible to display a symbol regarding the disk health on the tray icon also. It can be 
(perfect, in case of high health value), (poor, in case of low condition) or 
(acceptable, between the two thresholds). It is possible to select when the health symbol should be displayed – for example to display only if the health is too low.
If both the temperature and health symbol display is enabled, these two images displayed by turns (for one second, the temperature value is displayed and for one second the symbol of the current health value is displayed). This “flashing” may attract the attention of the user – but it can be disturbing. It is recommended to keep the default setting: to flash the tray icon only in case of a problem.