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102	102	* Smart Cities
103	103	* Smart Factory
104	104
105		-= 2.  Getting Started with 'Hello World' =
	105	+= 2.  Getting Started with Hello World =
106	106
107	107	== 2.1  About this demo ==
108	108
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145	145	[[image:squareline.io_downloads.png]]
146	146
147	147
148		-After installation, you can use SquareLine Studio with a **PERSONAL license plan**. Click **LOG IN** and create a free account using your email address. Then activate your PERSONAL license plan for free. You don’t need to provide any credit card information. However, the PERSONAL license plan has the following limitations:
	148	+After installation, you can use SquareLine Studio as a trial version for 30 days without activation. Click **CONTINUE WITH TRIAL** to use the trial version, or click **LOG IN** to activate the software with your license key.
149	149
150		-* Max. 10 screens
151		-* Max. 150 widgets
152		-* Max. 5 global colors
153		-* Max. 2 themes
154		-* Max. 1 component
	150	+[[image:squalreline-trial.png||height="602" width="400"]]
155	155
156		-== 2.3 Simple usage of SquareLine Studio and exporting UI code ==
	152	+The free version restricts usage to 1 component, 150 widgets, and 10 screens.
157	157
	154	+== 2.3 Simple usage of SquareLine Studio and export UI code ==
158	158
159		-After launching and logging into the software, create a new project as shown in Image 2.
160	160
161		-* Select the major **LVGL** version as **8.3**.
162		-* Select the **Desktop** tab.
163		-* Select  **Eclipse with  SDL for  development on PC**:
164		-* In the **PROJECT SETTINGS**, select **LVGL version** **8.3.11**
165		-* Select the **CREATE **button.
	157	+After launching and logging in to this software, create a project as shown in the following image 2. The version of LVGL is 8.3.11.
166	166
167	167	[[image:image-20240928103357-2.png||height="680" width="708"]]
168	168
169		- Image 2: Creating a new SquareLine project
	161	+ image 2 create a SquareLine project
170	170
	163	+Next, we need to make some settings for this project. By clicking in the specified order on image 3, we can see the page as shown in image 4.
171	171
172		-Next, you need to configure some settings for this project. By clicking in the specified order shown in Image 3, you will be directed to the page displayed in Image 4.
173		-
174		-* Select** File  -> Project Settings**
175		-
176	176	[[image:1727229582471-566.png]]
177	177
178		- Image 3 accessing project settings
	167	+ image 3 project settings
179	179
180		-
181		-In the PROJECT SETTINGS dialog box, configure/modify the project settings:
182		-
183		-* **UI Files Export Root**: Select a folder on your computer to store the UI files.
184		-* **LVGL Include Path**: Set this to **lvgl.h**
185		-* **Click on the APPLY CHANGES button.**
186		-
187	187	[[image:image-20240928105309-4.png||height="526" width="556"]]
188	188
189		- Image 4 Configure/modify project settings
	171	+ image 4 modify project settings
190	190
	173	+Now we can start to use this software. Here are some usage information for this software.
191	191
192		-Now you can start building the sample UI. Follow the steps below:
	175	+**~1. add widget**
193	193
	177	+To add a widget, you should click a widget you want to add at the area entitled “Widgets”. In image , demonstrate a add process of label, button, and image 5.
194	194
195		-=== Add widgets ===
196		-
197		-To add widgets navigate to the **Widgets** area, then click on the widgets you want to add. The selected widgets will be added to the screen. You can reposition the widgets in the screen area by clicking and dragging them.
198		-
199		-Add a Label, Button, and Image to the screen as shown in **Image 5**.
200		-
201	201	[[image:image-20240928111412-6.png||height="526" width="864"]]
202	202
203		- Image 5: Add widgets
	181	+ image 5 add widgets
204	204
205		-=== Modify widget properties ===
	183	+**2. modify widget**
206	206
207		-The area for modifying widgets is called the **Inspector** tab. The Inspector tab consists of four sections: **COMPONENT**, **<WIDGET>**, **STYLE SETTINGS**, and **EVENTS**, as shown in Image 6.
	185	+The area for modifying widgets is called "Inspector". There are four parts in the "Inspector" tab. We use three of them more frequently, excluding "COMPONENT". The second part is aimed at adjusting the layout, size, position, alignment, flags, and states, etc. of widgets. The name of the second part indicates the type of widget it is representing, and in image 6, it is "BUTTON".
208	208
209		-The second section allows you to adjust a widget's layout, size, position, alignment, flags, states, and more. When you select a widget on the screen, the name of this section changes to match the name of the selected widget.
210		-
211	211	[[image:1727485118799-984.png]]
212	212
213		- Image 6: The button widget's "Inspector" tab
	189	+ image 6 the button widget's "Inspector" tab
214	214
	191	+Second part: "Layout" means a auto position-management for widgets contained in the parent widget. "Transform" includes size, position and align modification.
215	215
216		-==== Changing the Button properties ====
217		-
218		-Click the Button. Under the **Label** section, type "Click for details..." in the **Text** textbox.
219		-
220		-Under the "Layout" you can
221		-
222	222	[[image:1727485251053-655.png]]
223	223
224	224	image 7 the button widget's "BUTTON" tab
225	225
226		-
227	227	Third part: It is an area of style setting.
228	228
229	229	Fourth part: It is an area for adding events. In image 8, it is adding a click event to a button. If the button is clicked after the click event is added as shown in image 8, the current screen will fade into another specified screen, and the switching process will last 500ms.
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232	232
233	233	image 8 add event for button
234	234
	205	+**3. change label widget content**
235	235
236		-==== Changing the label properties ====
	207	+Modify the content in text as shown in image 9, the text content of label widget will be changed accordingly.
237	237
238		-Click the label. Under the **Label** section, type "Hello World!" in the **Text** textbox.
239		-
240		-
241	241	[[image:image-20240928090825-1.png||height="327" width="391"]]
242	242
243		- Image 9:  Modify text of label widget
	211	+ image 9 modify text content of label widget
244	244
	213	+**4. Add image into project**
245	245
246		-==== 4. Changing image properties ====
247		-
248	248	To use the image widget, you should first add an image to your project. The image format must be PNG, and its resolution should not exceed 800x480 pixels. There are two ways to add an image file. One way is to move your image into the folder "…/squareline project/assets/", as shown in image 10. The other way is to click the "ADD FILE INTO ASSETS" button, then select an image from your computer to import. After adding, you can see the image in the "assets" area in SquareLine Studio, as demonstrated in image 11.
249	249
250	250	[[image:image-20240928113424-9.png||height="355" width="505"]]
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267	267
268	268	image 13 move label1 to make label1 widget be a child of button1 widget(2)
269	269
	237	+**6. Preview the final effect**
270	270
271		-**6. Preview the screen**
	239	+An advantage of this kind of software is that you can edit the UI with quick previews. In other words, it provides a way of combining graphical programming with simulation immediately.
272	272
273		-You can test the result by clicking on the **PLAY** button. The screen will change into play mode.
274		-
275	275	[[image:1727487368023-281.png]]
276	276
277	277	image 14 click on the triangle icon to start or end the simulation