• Firstly, Go to Masters > Marg Setups > Self Format.

• A 'Self Format' window will appear. The user will now enter the password.

• Now a 'Formats' window will appear.

• The user will select 'Invoice Format- GUI'. 

• An 'Invoice Format- GUI' window will appear.

• In ‘Format’ field, enter the name of the format.

• Suppose Enter 'AC'.

• The user will now select ‘Bill Format’.

• A 'Bill Format GUI- AC' window will appear.

• The user will select ‘Header’.

• Now, suppose the user needs to change the color of horizontal line.

• The user will select the command 'Rgb (0,0,0,)' (as shown in below image) and press 'F6' key.

• A 'Color' window will appear.

• The user will select the color as per the requirement and click on 'Ok'.

• The user will paste the color pixel by pressing 'F3' key.

• Fig. 1.1 View of pasting color command on existing Command in Marg Software.

• If the user needs to change the coordinates then it can be changed as per the requirement.

• Now press 'Ctrl +W' key and then click on 'Save' in order to save it.
  

After following the above steps, the user can view the Horizontal Line will get print in selected color in Invoice Format.