• For Custom Tkinter Builder to recognize your project correctly (When opening a project), provide the entire project folder, not just the .json file or the Assets subfolder.
• Make sure you know how to use pack. Believe me, it's simple. Resource Pack Manager - Effbot.
• Any widget can be added by dragging the corresponding button in the Widget Pane to the viewport
• Before changing the properties it must be selected. In order to select a widget just click on it or click on the corresponding button in the hierarchy.
• Properties of a widget can be changed in the properties panel
• Every property is divided into 4 categories (Geometry & Content, Styles, Arrangement, Layout)
• There are 8 types of inputs.

Name	Type	Image
Spinbox	Number
Multiline Text Box	String/Text Supports Multiple Lines
Singleline Text Box	String/Text Supports Single Line
Tuple Spinbox	Takes 2 numbers. Only used in padx and pady.
Combo Box	Choose one from the option
Color Input	Takes 2 colors (light/dark) or transparent (If checkbox is present)
List Box	Add Values to the list or delete them
Image	Accepts an Image as an input

• Almost all the parameters of all the widgets can be changed.

That's It!! You can take a look at the Tutorial - Hello World