Fixed color alpha value calculation in getColor function

[Ibrahim-Lokman]

Problem

The getColor method incorrectly scaled the alpha value (color?.a) from a range of 0 to 1 by multiplying it by 255 and converting it to an integer. This resulted in an invalid alpha value for CSS, which expects the alpha channel to remain in the range of 0 to 1.

Solution

• Adjusted the calculation to directly use color?.a without scaling.
• Ensured the alpha value remains within the valid CSS rgba range.

Changes Made

• Removed the multiplication by 255 for the alpha channel.
• Updated the getColor function to correctly calculate and return the CSS-compatible rgba string.

Impact

With this fix, opacity set in Flutter now works correctly after the CSS conversion.

Note

This issue was present in earlier versions of the flutter_tex package (prior to 4.0.10) and could have been avoided by using color?.opacity instead of color?.alpha.

Updated file: lib/src/utils/style_utils.dart