Alternativ gehen auch die SVG-Widgets. Die können auch schräge Linien. Und du kannst die Linien im Editor malen.
Beispiel-Widget:
[{"tpl":"tplShapes","data":{"g_fixed":false,"g_visibility":false,"g_css_font_text":false,"g_css_background":false,"g_css_shadow_padding":false,"g_css_border":false,"g_gestures":false,"g_signals":false,"visibility-cond":"==","visibility-val":1,"visibility-groups-action":"hide","svgType":"line","strokeColor":"#b31c00","fill":"#b31c00","strokeWidth":"5","scaleWidth":"1","scaleHeight":"1","signals-cond-0":"==","signals-val-0":true,"signals-icon-0":"/vis/signals/lowbattery.png","signals-icon-size-0":0,"signals-blink-0":false,"signals-horz-0":0,"signals-vert-0":0,"signals-hide-edit-0":false,"signals-cond-1":"==","signals-val-1":true,"signals-icon-1":"/vis/signals/lowbattery.png","signals-icon-size-1":0,"signals-blink-1":false,"signals-horz-1":0,"signals-vert-1":0,"signals-hide-edit-1":false,"signals-cond-2":"==","signals-val-2":true,"signals-icon-2":"/vis/signals/lowbattery.png","signals-icon-size-2":0,"signals-blink-2":false,"signals-horz-2":0,"signals-vert-2":0,"signals-hide-edit-2":false,"rotate":"128"},"style":{"left":"775px","top":"855px","z-index":"20"},"widgetSet":"basic"}]Dann zwei Widgets übereinander (rot und grün) und über Sichtbarkeit jeweils eines anzeigen.
Gruß
Pix