Graphic novel with young red headed siblings looking for father, Western setting
Hello! This is my first post on reddit and I'm come in search of a book! It is a graphic novel, in color not b&w, that likely came out between 2008 and 2018. It's about these two red headed siblings. A younger brother aged about 10 and an older sister aged about 12. The sister wears a yellow (maybe red) scarf around her neck. The book takes place in a desert in the West. The kids are kinda dressed like cowboys. The genre is adventure comedy and the target age range is middle schoolers. Unfortunatley I don't remember a ton about the plot. Just that they are looking for their dad the whole book and, spoiler alert, at the end they find him and he's a really bad guy so they run away from him. The art style is a adjacent to Raina Telgemeier's style.
Thank you so much for your help!