custom font image

hey, i'm trying to have a custom font to display a single image. The image scale is 1024x1024 and it's store at assets\minecraft\textures\fontand i have a json file name default.json who is stored at assets\minecraft\font\icon.png and who's containing :

json {     "providers": [         {             "type": "bitmap",             "file": "minecraft:font/icon.png",             "ascent": 0,             "height": 1024,             "chars": [                     "\uE001"                 ]         }     ] }

but when i try to do /tellraw @a {"text":"\uE001"} i have a white scare. what did i do wrong ?

Continue to help post