worked on SPI, fixed some bugs

adjusted LCD code
added code for INA3221
worked on UI

ext/lcd/ui/UIElement.h

@@ -15,13 +15,20 @@ protected:
 	UIRect rect;
 	bool _visible = true;
 	bool _needsRedraw = true;
-
+	
+	bool opaque = true;
+	bool focus = false;
+	
 	std::vector<UIElement*> children;
 
 	static constexpr const char* TAG = "UIElement";
 
 public:
 
+	void setOpaque(bool opaque) {
+		this->opaque = opaque;
+	}
+
 	void setRect(const UIRect r) {
 		this->rect = r;
 		setNeedsRedraw();
@@ -44,6 +51,11 @@ public:
 		return this->_visible;
 	}
 
+	void setFocus(bool focus) {
+		this->focus = focus;
+		setNeedsRedraw();
+	}
+
 	void setNeedsRedraw() {
 		this->_needsRedraw = true;
 	}
@@ -99,7 +111,7 @@ protected:
 
 	void _draw(UIPainter& p) {
 
-		// if hidde, ignore for me and children
+		// if hiden, ignore for me and children
 		if (!_visible) {return;}
 
 		// draw myself (if needed)