: title: "BiogasControllerApp" font_size: 50 size_hint: 0.5, 0.4 auto_dismiss: False GridLayout: cols: 1 Label: text: "Are you sure you want to leave?" font_size: 20 GridLayout: cols:2 Button: text: "Yes" font_size: 15 on_release: root.quit() app.stop() Button: text: "No" font_size: 15 on_press: root.dismiss() : title: "INFORMATION" size_hint: 0.7, 0.5 auto_dismiss: True GridLayout: cols: 1 Label: id: msg text: "Message" text_size: self.width, None halign: 'center' GridLayout: cols: 1 Button: text: "Ok" on_release: root.dismiss() : title: "WARNING!" font_size: 50 size_hint: 0.5, 0.4 auto_dismiss: False GridLayout: cols:1 Label: id: msg text: "Message" font_size: 20 halign: 'center' GridLayout: cols:2 Button: id: btn1 text: "Details" on_release: root.action_one() root.dismiss() Button: id: btn2 text:"Ok" on_release: root.action_two() root.dismiss() : title: "Details" font_size: 50 size_hint: 0.7, 0.6 auto_dismiss: False GridLayout: cols:1 Label: id: msg_title text: "Message title" font_size: 20 Label: id: msg_body text: "Message body" font_size: 14 Button: text:"Ok" on_release: root.dismiss() : title: "DETAILS" font_size: 50 size_hint: 1, 0.7 auto_dismiss: False GridLayout: cols: 1 Label: id: msg_title text: "title" font_size: 20 Label: id: msg_body text: "Message" font_size: 13 Label: text: msg_extra font_size: 13 Button: text:"Ok" on_release: root.dismiss()