public void setOptimalResolution(int optimalResolution) {
        this.optimalResolution = optimalResolution;
    }
Sets the resolution of the screen if the optimal width and height are
used, in DPI.

@param optimalResolution The optimal screen resolution in DPI.
guacamole-common/src/main/java/org/apache/guacamole/protocol/GuacamoleClientInformation.java