<< Click to display Table of content >> Navigation:  Standard functions > Overlays > Themes

It is possible to add themes on overlay (symbology). Themes can be used to control the display of items based on properties (e.g. color), or display properties/combined properties.

For example, it is possible to color buildings based on a limit when the noise level exceed the limit.

Add / Load a theme

To add a theme, right-click on the overlay/Add theme... Then, choose the type of theme to use based on your data.

It is possible to load a saved theme. To do it, in the window Theme types, select Miscellaneous/Saved Themes.

Edit a theme

To edit a theme, select the theme and right-click/Theme properties... In the next window, settings of the theme can be modified.

Save a theme

To save a theme, select the theme and right-click/Save theme... In the next window, enter a name and click on OK. The theme will be saved under the entry User.

Note that the name of the theme in the MithraSIG project will be the legend, and not the one entered when saving the theme.

Copy a theme

To copy a theme and paste it on another overlay, select the theme and right-click/Copy theme... Then, on another overlay, right-click/Paste theme...

Delete a theme

To delete a theme, select the theme and right-click/Delete.