diff --git a/.DS_Store b/.DS_Store
index f75a713..1222086 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/assets/icons/gap.svg b/assets/icons/gap.svg
new file mode 100644
index 0000000..0272d4f
--- /dev/null
+++ b/assets/icons/gap.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="23" fill="none" viewBox="0 0 24 23">
+  <path fill="#8552A1" d="M.858 2.656V0H24v2.656H.858Zm9.919 7.034V7.034h13.202V9.69H10.777Zm.02 5.464v-2.656h13.165v2.656H10.794h.003ZM.91 22.085v-2.656h23.015v2.656H.91ZM0 9.621l4.109-4.18 4.106 4.182H0V9.62Zm.045 3.601h8.208L4.15 17.356.045 13.222Z"/>
+</svg>
diff --git a/assets/icons/padding.svg b/assets/icons/padding.svg
new file mode 100644
index 0000000..086aac9
--- /dev/null
+++ b/assets/icons/padding.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24">
+  <path fill="#C9CDD4" d="M5.6 18.4h12.8V5.6H5.6v12.8ZM24 20.8a3.2 3.2 0 0 1-2.874 3.184L20.8 24H3.2l-.326-.016a3.2 3.2 0 0 1-2.856-2.858L0 20.8V3.2A3.2 3.2 0 0 1 3.2 0h17.6A3.2 3.2 0 0 1 24 3.2v17.6Z"/>
+  <path fill="#8552A1" d="M17.4 21.6a1.2 1.2 0 1 1 0 2.4H6.6a1.2 1.2 0 1 1 0-2.4h10.8ZM0 17.4V6.6a1.2 1.2 0 1 1 2.4 0v10.8a1.2 1.2 0 1 1-2.4 0Zm21.6 0V6.6a1.2 1.2 0 1 1 2.4 0v10.8a1.2 1.2 0 1 1-2.4 0ZM17.4 0a1.2 1.2 0 1 1 0 2.4H6.6a1.2 1.2 0 0 1 0-2.4h10.8Z"/>
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diff --git a/data/~$example0.xlsx b/data/~$example0.xlsx
new file mode 100644
index 0000000..d6d208b
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