I am trying to migrate from ver5.3 to ver6.0. I had created my own symbol in ver5.3, since I need some custom symbol so I can not use fontAwesome symbols. Previously in ver5.3 I had created my symbol font files and then using lv_font_builtin_init added my symbols to my custom fonts. I noticed that there is no lv_font_builtin_init function any more. I tried to use font converter and added my font file (( e.g robotbold.ttf) ) first then added my symbol font files but it keeps give me an error “doesn’t have any characters included in range 0xEA-0xF1” while I was able to install the font file which includes the my symbols in windows and I am sure about the symbols Unicode .