Methods
getMassListToColorBG(position, color)
    Function to get all the positions and color to be add background color
    Parameters:
| Name | Type | Description | 
|---|---|---|
| position | Integer | Contains position at which mass shif to be added | 
| color | String | Contians background color(comes from dropdown list) to be added to the mass shift | 
- Source:
rect_Backgroundcolor(x, y, id, color)
    Function to add background color at occurence acids
    Parameters:
| Name | Type | Description | 
|---|---|---|
| x | Integer | Starting x position to add background color | 
| y | Integer | Strating y position to add background color | 
| id | String | Contains id of svg tag from html | 
| color | String | Background color to be added | 
- Source:
setBackGroundColorOnMassShift(bgColorList)
    Function Adds selected background color to the amino acid
    Parameters:
| Name | Type | Description | 
|---|---|---|
| bgColorList | Array | Set all the aminoacids with desired background colors selected from drop down | 
- Source: