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informationsea / xlsxwriter-rs

Excel file writer for Rust
https://crates.io/crates/xlsxwriter
Apache License 2.0
265 stars 44 forks source link

Color fine alpha management #52

Open adrien3d opened 12 months ago

adrien3d commented 12 months ago

Hello, would it be possible to use custom colors (such as a HEX, or a RGB with alpha), for example for FormatColor? I think we could use FormatColor::Custom(0x12_34_56) for custom color, but I don't see how to handle the alpha for transparency. Do you have any idea on how to do so?

jmcnamara commented 10 months ago

The wrapped libxlsxwriter library only supports transparency for Chart Line and SolidFill elements.

These are exposed by the xlsxwriter.rs APIs: https://docs.rs/xlsxwriter/latest/xlsxwriter/index.html?search=transparency