We always recommend you to use a child theme, To make your Changes Update Proof.
It is available for Free to Download
TH-Top WordPress Theme
Child theme of Top Store Free WordPress theme.
TH-M WordPress Theme
Child theme of M-Shop WordPress theme.
TH-Open WordPress Theme
Child theme of Open Shop WordPress theme.
TH-Big WordPress Theme
Child theme of Big Store WordPress theme.
TH-Open-mart WordPress Theme
Child theme of Open-mart WordPress theme.
Th-Almaira-Shop WordPress Theme
Child theme of Almaira Shop WordPress theme.
Th-Gogo WordPress Theme
Child theme of Gogo WordPress theme.
TH-One WordPress Theme
Child theme of Oneline Pro WordPress theme.
TH-Featured WordPress Theme
Child theme of Featuredlite Free WordPress theme.
TH-Portfolio WordPress Theme
Child theme of Portfolio WordPress theme.