With this app, you can change fonts styles on your Vivo and Oppo phone. To apply the fonts, follow the procedure below: -1. Select the font you want to install from the list2. Click on INSTALL button and wait for the installation to complete3. Click OPEN THEMES button to open the Themes manager4. Click on Customize OR MeĀ»Customize5. Click Text style to open list of installed fonts.6. Select the font and click APPLYFor OPPO1. Open Settings>> Language and Region2. Change region to Myanmar3. Open Settings >> Display and Brightness4. Enable support DAI characters option