Css viewer

tilepieces documentation - panel-css-inspector
The panel called "css viewer" allows the modification of the css rules within the stylesheets.
It will only be visible if there is an item selected, otherwise a blank screen will appear.
The rules will be inserted in the "current stylesheet". When inserting a css property, you can select an existing rule or create a new one with a certain selector. See the section "how to insert css rules" for more information.
The panel is divided into 8 sections:

that can be navigated through the menu on the left, as shown in the image below:

tilepieces documentation - panel-css-section-grey