#91 get and set values for all controls/indicators and textbox

graphics/elements/indicators/light.lua

@@ -31,6 +31,7 @@ local function indicator_light(args)
     -- on state change
     ---@param new_state boolean indicator state
     function e.on_update(new_state)
+        e.value = new_state
         e.window.setCursorPos(1, 1)
         if new_state then
             e.window.blit(" \x95", "0" .. args.colors.blit_a, args.colors.blit_a .. e.fg_bg.blit_bkg)
@@ -39,6 +40,8 @@ local function indicator_light(args)
         end
     end
 
+    function e.set_value(val) e.on_update(val) end
+
     -- write label and initial indicator light
     e.on_update(false)
     e.window.write(args.label)