really really ignore invisible sliders X-(

0084-update_any_sliders

@@ -1,5 +1,5 @@
 update_any_sliders = function(x,y)
-	if Show_settings == nil then return end
+	if not Show_settings then return end
 	if Selected_slider == Settings_font_slider.name then
 		update_font_settings(slider_value(Settings_font_slider, x))
 		return true

0086-mouse_on_any_slider

@@ -1,5 +1,5 @@
 mouse_on_any_slider = function(x,y, mouse_button)
-	if Show_settings == nil then return end
+	if not Show_settings then return end
 	local result = false
 	if on_slider(Settings_font_slider, x,y) then
 		Selected_slider = Settings_font_slider.name