# Basic Specification
• Supported formats: jpg, jpeg, png \
• Size limit: within 3000(px) x 3000(px) \
• File size limit: within 5M
## 1. Best Optimized Method
### 1.1 Set appropriate color mode
* Set to RGB color, so you can find out whether there is a color difference problem in time;
* When exporting a picture file, you must check "Color Space"-"Convert to sRGB", and check whether the picture has color difference after exporting the file;
### 1.2 Choose an appropriate picture size
Estimate the size of the picture displayed in the scene in advance. For example, make a 2D label in a 3D scene, and hope that it will be 1/4 of the device screen width when the maximum is displayed. Then we can set the picture width to 270px (taken here) (Mainstream high-resolution equipment width 1080px).
### 1.3 Set an appropriate picture resolution
It is recommended that the picture resolution should be set to 72PPI.
### 1.4 Select the appropriate picture format
Determine whether the picture contains transparent parts, if there are no transparent parts, it is recommended to export to jpg or jpeg format.
### 1.5 Appropriate compressed image
It is recommended to upload to the image compression platform Tinypng for processing:
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