The Lisbon Theme is not working well. I installed the Silk UI web and the Lisbon template from forge. I attached a screen to show to you guys, what is appearing to me. Someone knows how to fix it ?
Nothing seems wrong with the theme in the screenshot you've attached. Your theme's look is not similar to demo(https://silkui.outsystems.com/lisbonpreview/) because in that demo, components of that theme are used to give that kind of look. The one that you installed, it comes with all the components that can be used to achieve that look.