added shading to the Code Editor

src/code.c

@@ -83,6 +83,7 @@ static void drawCode(Code* code, bool withCursor)
 
 		if(code->cursor.selection && pointer >= selection.start && pointer < selection.end)
 			code->tic->api.rect(code->tic, x-1, y-1, TIC_FONT_WIDTH+1, TIC_FONT_HEIGHT+1, getConfig()->theme.code.select);
+        else code->tic->api.draw_char(code->tic, symbol, x+1, y+1, 0);
 
 		code->tic->api.draw_char(code->tic, symbol, x, y, *colorPointer);