Frequency map illustrating fundamental frequencies in the Cartesian coordinate system and bar-rotating reference frame for our RR Lyrae dataset. The color-coding is used to represent positive and negative values of ${\mathrm{\Omega }}_{\phi }^{\text{rot}}$. Major orbital families are labeled and delineated with dotted lines. Additionally, dashed green lines highlight a region above the z-tube resonance. In the inset, we present the distribution of ${\mathrm{\Omega }}_x^{\text{bar}}/{\mathrm{\Omega }}_z^{\text{bar}}$ using the same vertical dotted gray lines as in the main panel.