Brackets editor showing faint lines as I type

[sumitkp1]

Prerequisites

• Can you reproduce the problem with Debug -> Reload Without Extensions?
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Description

I seeing faint lines as I am typing the code.. i dont know how to fix them, pls help.
pic of my problem: https://imgur.com/a/c9N4NG8

notice faint red lines on , , href, on the word 'using' inside

tags and at the tags.

Versions

System I am using:
Ubuntu 18.04 LTS
Processor: i3
RAM: 4 GB

Brackets version I am using:
Release 1.14 build 1.14.0-17740 (release 329d08f)
build timestamp: Fri Apr 26 2019 17:04:50 GMT+0000