Change font color for a row of text in cell which contains a certain value - excel

Question

I am writing a check in/out program in excel and have gotten te request that if a line contains "|0|" it should get a different font color.
I've tried with Instr and Cells().Characters but I cannot seem to figure out how to do it.
The cells can have a variety of rows of text. Which is easy enough to solve with splitting them on a return and having a for loop loop, but I cannot seem to figure out how to assign a different font color to a row of text that contains the required value.
Image for illustration of the data:
How do I best solve this?
Added information:
The goal of this is that on button press the whole line of text where the |O| is would be collored differently. Other lines of text that do not have this will remain the same color.
Like in this image as a concept
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Answer 1

try this
Public Sub ExampleMainSub()
Dim cell As Range
For Each cell In Selection
If HasMySymbols(cell.Value) Then
WorkWithCellContent cell
Else
cell.Font.ColorIndex = xlAutomatic
cell.Font.TintAndShade = 0
End If
Next cell
End Sub
Private Sub WorkWithCellContent(ByVal cell As Range)
Dim arr As Variant
arr = Split(cell.Value, Chr(10))
Dim firstPosOfRow As Long
firstPosOfRow = 1
Dim subLine As Variant
For Each subLine In arr
If HasMySymbols(subLine) Then
cell.Characters(start:=firstPosOfRow, Length:=Len(subLine)).Font.Color = vbRed
Else
cell.Characters(start:=firstPosOfRow, Length:=Len(subLine)).Font.ColorIndex = xlAutomatic
End If
firstPosOfRow = firstPosOfRow + Len(subLine) + 1 '+1 is needed
Next subLine
End Sub
Private Function HasMySymbols(ByVal somestring As String) As Boolean
HasMySymbols = InStr(1, somestring, "|0|") > 0
End Function

Answer 2

Try this. It works for me.
Sub ChangeRowFontColour()
Dim rng As Range
Dim TextToFind As String
Dim FirstFound As String
TextToFind = "Specific Text"
With ActiveSheet.UsedRange
Set rng = .Cells.Find(TextToFind, LookIn:=xlValues)
If Not rng Is Nothing Then
FirstFound = rng.Address
Do
rng.EntireRow.Font.ColorIndex = 3
For Each part In rng
lenOfPart = Len(part)
lenTextToFind = Len(TextToFind)
For i = 1 To lenOfPart
tempStr = Mid(part, i, lenTextToFind)
If tempStr = TextToFind Then
part.Characters(Start:=i, Length:=lenTextToFind).Font.ColorIndex = 0
End If
Next i
Next
Set rng = .FindNext(rng)
Loop While Not rng Is Nothing And rng.Address <> FirstFound
End If
End With
End Sub