The cursor is a blinking vertical line that appears wherever a user types text, such as in text editors, word processing documents, Internet browsers, and so on. When a user types something the cursor always precedes the text.
If you want to indicate the text cursor with two small bobbles above and below it, you can use the “Text Cursor Indicator.” Here, indicators always follow the text cursor.
A text cursor indicator is used to easily identify the position of the text cursor.
Table of Contents
Changing the Text Cursor Indicator Color and Thickness
Right-click on the desktop
Select Personalize to launch the Accessibility window (Or press the Windows logo key + I to launch the settings windows to navigate to the Accessibility window)

Then select Accessibility, and then select Text cursor

If you want to show the text cursor indicator on any text editor document, make sure the cursor indicator on
Scroll right or left using the scrollbar to change the size of the indicator
Select a recommended colour or choose the different colour you want
To change the text cursor thickness, scroll right or left using the scrollbar.

Changing Insertion Indicator Color and Size in Windows 10, 8.1, and 7:
Step 1: Click on the Windows Start button and select Settings
Step 2: Select Settings to open a list of setting options (Or press the Windows logo key + I to launch the settings windows to navigate to the Ease of access window)

Step 3: Now select Ease of Access to launch the display window

Step 4: On the Display window, under the Ease of access, select Text cursor to navigate to the text cursor settings

Step 5: If you want to show the text cursor indicator on any text editor document, Turn on the text cursor indicator
Step 6: Scroll left and right using the scrollbar to change the size of the indicator
Step 7: Select recommended colour or choose the different colour you want
Step 8: To change the text cursor thickness, scroll left or right using the scrollbar.

What is Text Cursor Indicator in Windows OS?
A cursor Indicator is used to indicate a text cursor with like two small bobbles positioned at the top and bottom of it.
Where to use Windows Cursor Indicator?
It is used on the documents like MS Word, other text editors, browsers, etc.