Ui enhancements 2.0 (#31)

* canvas overhaul

* minor tweaks

* list mode for overview

* bugfixes + tweaks for editor 2.0

* minor tweaks

* more editor work

* refactor + new transitions

* use layout() where appropriate and cleanup

* mouse triple click + textEntry scroll ind

* cleanup

* cleanup + theme editor

* color rework + cleanup

* changes for deprecated ui methods

* can now use named colors

sys/modules/opus/ui/components/MenuItem.lua

@@ -1,13 +1,9 @@
 local class = require('opus.class')
 local UI    = require('opus.ui')
 
-local colors = _G.colors
-
-UI.MenuItem = class(UI.Button)
+UI.MenuItem = class(UI.FlatButton)
 UI.MenuItem.defaults = {
 	UIElement = 'MenuItem',
-	textColor = colors.black,
-	backgroundColor = colors.lightGray,
-	textFocusColor = colors.white,
-	backgroundFocusColor = colors.lightGray,
+	noPadding = false,
+	textInactiveColor = 'gray',
 }