I have following questions
1) I want to know if it is possible to change the background color of a marker symbol from field.
2) Line color takes blob field to store the color, but we wanted to change the color on some field value so firstly we got the blob value of color in probably hexadecimal form and and inserted in another table , then in the update /insert trigger we get the value of the field, found the appropriate blob from other table and updated the color value in the the layer table. I wanted to know if it is the right approach? And is there any other way to to get blob value of specific color ?