PCB Light Painting-Ultimate Enhanced Edition Pro

For the previous version of the project, see PCB Light Painting - Personal Reproduction and Optimization Version - Jiali Chuang EDA Open Source Hardware Platform (oshwhub.com).
The original idea of ​​the project comes from https://oshwhub.com/qazwsx1987/dengguanghua_0 .
The original artist of the light painting is Hwang Seontae.
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Thanks to the original author for his excellent creativity, the following improvements are made on the basis of the previous version:
1. In order to solve the light leakage problem and to increase the battery, a 3D printed shell is designed.
2. Add dual-tone dimming function, 6 LED lights for cold and warm, short press to adjust the color temperature, long press to adjust the brightness, and also with brightness memory function.
3. Add lithium battery, use 4000mah battery, the battery can last for 6 hours at the highest brightness.
4. Use control chip + 5V boost combination, automatically disconnect the boost circuit after turning off the light, and the standby current is only 200ua.
5. Comes with TP4056 charging chip, uses type-c port for charging, and there is an indicator light to indicate the charging status.
6. The touch is changed from a pin header to a touch spring, which can be used with acrylic boards separated by several millimeters, and the touch is sensitive and reliable.
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Current problems and next improvement direction:
1. Due to some reasons that single brothers understand, the project is unfinished, and I don’t think it’s necessary to continue.
   At present, the PCB has been verified to have no major problems, but the shell has not been verified. Brothers who like this project hope you can continue to work on
it2. When all the lights are fully turned on, the total current reaches nearly 600ma, which is close to the limit of the BOOST boost chip.
    Therefore, the boost chip will heat up sharply, and a higher-power boost chip will need to be replaced later.
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The actual picture is as follows:
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Assembly simulation picture is as follows:
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Part of the bill of materials is as follows:
The magnet here is planned to be attached to the back of the front panel and sucked on the copper column at the back by magnetic suction.