Hi Gabo,
We should set wrap property as NoWrap and the overflow as clip or ellipsis which cuts the overflow text in the symbol palette. Please refer to a code example and the sample below.
Code example:
public getSymbolInfo(symbol: NodeModel): SymbolInfo {
// display text for palette item
return { description: { text: symbol.annotations[0].content, overflow:'Ellipsis', wrap:'NoWrap' }, fit:true };
}
Regards,
Shyam G